imaging Educational Exhibit
|
|
- Griffin Ryan
- 5 years ago
- Views:
Transcription
1 Characterization of T2 hypointense lesions within pediatric diffuse intrinsic pontine glioma using susceptibilityweighted, diffusion-weighted, dynamic susceptibilityweighted contrast-enhanced perfusion and conventional MR imaging Poster No.: C-2622 Congress: ECR 2010 Type: Educational Exhibit Topic: Neuro - Tumor Authors: U. Löbel, J. Sedlacik, M. Kocak, W. E. Reddick, A. Broniscer, C. M. Hillenbrand, Z. Patay; Memphis, TN/US Keywords: Susceptibility-weighted imaging, Dynamic susceptibility-weighted contrast-enhanced perfusion imaging, Diffusion tensor imaging Keywords: Neuroradiology brain, Neuroradiology peripheral nerve, Neuroradiology spine, Oncology, Neoplasia DOI: /ecr2010/C-2622 Any information contained in this pdf file is automatically generated from digital material submitted to EPOS by third parties in the form of scientific presentations. References to any names, marks, products, or services of third parties or hypertext links to thirdparty sites or information are provided solely as a convenience to you and do not in any way constitute or imply ECR's endorsement, sponsorship or recommendation of the third party, information, product or service. ECR is not responsible for the content of these pages and does not make any representations regarding the content or accuracy of material in this file. As per copyright regulations, any unauthorised use of the material or parts thereof as well as commercial reproduction or multiple distribution by any traditional or electronically based reproduction/publication method ist strictly prohibited. You agree to defend, indemnify, and hold ECR harmless from and against any and all claims, damages, costs, and expenses, including attorneys' fees, arising from or related Page 1 of 30
2 to your use of these pages. Please note: Links to movies, ppt slideshows and any other multimedia files are not available in the pdf version of presentations. Page 2 of 30
3 Learning objectives This exhibit will illustrate and discuss the conventional magnetic resonance imaging (MRI) appearance and significance of T2 hypointense foci in diffuse intrinsic pontine gliomas. We will describe how the following advanced MRI techniques can aid in the confident identification and differential diagnosis of these lesion components: Susceptibility-weighted imaging (SWI) Diffusion-weighted imaging (DWI)/ Diffusion tensor imaging (DTI) Dynamic susceptibility-weighted contrast-enhanced (DSC) perfusion MR imaging and Proton MR spectroscopy (MRS) Page 3 of 30
4 Background In children, tumors arising from the brainstem (midbrain, pons, and medulla oblongata) account for almost 12% of all central nervous system (CNS) tumors (CBTRUS, 2005, Fig. 1 on page 6). Brainstem gliomas are either focal (<20%) or diffuse (>80%) tumors (Kaplan et al., 1996). The conventional MR imaging features of diffuse intrinsic pontine gliomas (DIPG) are usually characteristic enough to allow a confident diagnosis without biopsy prior to treatment (Barkovich et al., 1990; Fischbein et al., 1996). Diagnostic criteria for DIPG by conventional MR imaging are (Barkovich, 2005) (Fig. 2 on page 6): The tumor field is mainly hyperintense on T2-weighted imaging The tumor involves more than 75% of the cross sectional area of the pons Expansion of the tumor toward the 4th ventricle (typically without supratentorial hydrocephalus) Encasement of the basilar artery (without invasion) Although the tumor field is dominantly T2 hyperintense, we found that through careful analysis, T2 hypointense lesion components of varying appearance can frequently be identified, too (Fig. 3 on page 7). The differential diagnostic considerations of T2 hypointense lesions include: True lesions: Hemorrhage and calcification Histologically/biologically different lesion components (e.g. focal anaplasia) Normal Structures: Fiber tracts Normal, not yet infiltrated parenchyma Confident identification and differentiation of these lesion components is important since they may influence management and prognosis, and may impact developing treatment Page 4 of 30
5 strategies. Since patients with DIPG generally do not receive tumor biopsy, a more accurate biological characterization of the tumor (including the identification of areas of possible focal anaplasia) is clinically important. Advanced MRI techniques have shown the potential to provide valuable information about functional and structural integrity of brain parenchyma, therefore are considered to be adequate tools for investigating the above outlined "unusual" imaging features of DIPGs. Page 5 of 30
6 Images for this section: Fig. 0: Distribution of all childhood primary brain and CNS tumors (0-19 yr) by site, CBTRUS (n=5,455). CBTRUS Primary Brain Tumors in the United States Statistical Report Page 6 of 30
7 Fig. 0: Conventional T2-weighted image of a DIPG in a 7-year-old child at diagnosis. The mainly T2 hyperintense tumor is characterized by involvement of the pons (>75% of the axial diameter), expansion of the tumor toward the 4th ventricle (black arrow) and encasement of the basilar artery (white arrow). Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 7 of 30
8 Fig. 0: Appearance of T2 hypointense foci within the mainly T2 hyperintense DIPG. Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 8 of 30
9 Imaging findings OR Procedure details METHODS The data presented were acquired between 2004 and During this time, various protocols were used in our institution in the treatment of patients with DIPG. Those protocols differed in the use of chemotherapeutic agents (e.g. carboplatin and etoposide, cisplatin, irinotecan and temozolomide), adjuvant anti-angiogenic agents (vandetanib) and the administration of radiation therapy (conformal, fractionated, hyperfractionated). Imaging protocols were also different with regards to the use of advanced MR techniques, reflecting the continued technological advances, the resultant improvements (singlevoxel spectroscopy vs. 2D-CSI) and the introduction of new technologies (SWI, DTI). Therefore, when addressing our different research objectives, we used subgroups of patients, as deemed appropriate, in order to ensure consistency in their MRI evaluation. 1. Hemorrhage and calcification: SWI SWI is a robust MRI technique, which enhances the visualization of magnetically susceptible substances (e.g. hemorrhage and calcification) (Reichenbach and Haacke, 2001; Tong et al., 2008). In many ways, SWI is similar to T2*-weighted gradient echo imaging (T2*-GRE). The major difference between the two techniques is that T2*-GRE is a 2D method while SWI is a 3D method. Due to the larger slice thickness of T2*-GRE, small hemorrhages could easily be missed. For the same reason, T2*-GRE is also more prone to additional signal loss and phase dispersion caused by field inhomogeneities induced by bone-tissue interfaces, in particular in the posterior fossa. Homodyne filtered phase images (using 25% of the original k-space information which allows for a meaningful interpretation) are available with both techniques, while SWI data sets also included SWI maps and minimum intensity projections (minip) of the SWI maps (Reichenbach and Haacke, 2001). Phase images are essential for the differentiation of hemorrhage and calcification by susceptibility-sensitive techniques (Gronemeyer et al., 1992) (Fig. 1 on page 15). SWI maps further increase the contrast between magnetically susceptible substances and the surrounding tissue. They are obtained by applying a phase mask to the magnitude image, essentially combining magnitude and phase images. The minip Page 9 of 30
10 images increase the conspicuity of susceptibility effects across several partitions (Fig. 2 on page 15). T2 hypointense foci on T2*-GRE and SWI images were evaluated using the following criteria: Hemorrhage: hyposignal on magnitude images and hypersignal on phase images (Fig. 1, upper left image). Calcification: hyposignal on both magnitude and phase images (Fig. 1, lower left image) Important note: the appearance of hemorrhage and calcification on SWI phase images depends on the signal encoding, is vendor specific and may be inverted (Deistung et al., 2006). However, since hemorrhages show the same contrast as venous vessels on phase images and calcifications show an inverted phase they can always be verified even if no detail about the vendor or the signal encoding is known. Lesions which were determined to be hemorrhagic were recorded and measured along their larger diameter in the axial plane by two blinded reviewers. 2. Foci of anaplasia: DWI, DSC perfusion and MRS Focal anaplasia is common in higher-grade cerebral neoplasms, but may also be found in predominantly low-grade lesions at histopathological evaluation of biopsy or autopsy specimen (Black, 1991). Recently, a case of a histologically confirmed focal anaplasia within a cerebellar juvenile pilocytic astrocytoma was reported (Lach et al., 2003), which at MR imaging showed a peculiar constellation of MRI signal properties: T2 hyposignal Signal enhancement after contrast injection Restricted water diffusion DIPG are generally low-grade (WHO grade I/ II) at the time of clinical presentation (Mantravadi et al., 1982; Yoshimura et al., 2003), but rapidly evolve towards high-grade lesions and the vast majority of these tumors are found to be glioblastoma multiforme at autopsy (personal communication, A. Broniscer). In a subset of patients with DIPG, we identified T2 hypointense lesion areas showing similar imaging characteristics as described above and hypothesized that these foci may also correspond to focal anaplasia. To test our hypothesis, we collected diffusion tensor imaging (DTI) and dynamic susceptibility-weighted contrast-enhanced Page 10 of 30
11 (DSC) perfusion MR images. The rational for choosing these techniques was that the apparent diffusion coefficient (ADC, calculated by DTI) has been identified as a reliable metric of differentiation between low- and high-grade cerebellar tumors (Rumboldt et al., 2006) and that an increase in relative cerebral blood volume (rcbv) is believed to reflect angioneogenesis and has been shown to be an accurate predictor of outcome in supratentorial hemispheric tumors (Law et al., 2004). ROIs representing the T2 hypointense foci (T2HIF) and the typical T2 hyperintense tumor (TU) were placed on ADC maps and transferred to fractional anisotropy (FA), cerebral blood volume (CBV) and cerebral blood flow (CBF) parametric maps. Relative CBV and CBF values (rcbv, rcbf) were calculated with respect to normal cerebellar gray matter. MR spectroscopy (MRS) was not used in our initial evaluation of suspected focal anaplasia; however, MRS has been shown to aid significantly in the differentiation of lowgrade and high-grade tumors and helps to monitor disease progression. Several cut-off values to differentiate low-grade from high-grade gliomas have been established (Law et al., 2003; McKnight et al., 2002; Stadlbauer et al., 2006; Tzika et al., 2004), but it seems that the Choline/N-acetylaspartate (Cho/NAA) ratio is most frequently used. For that reason, we recently started performing 2D-CIS MRS in patients with suspected focal anaplasia, providing us with some preliminary data. 3. Fiber tracts: DTI On conventional MR images, fiber tracts of a healthy brain stem are generally not well delineated because tracts blend into the surrounding tissue. However, fiber tracts may be visualized on color coded fractional anisotropy (FA) maps using DTI (Fig. 3 on page 16). In patients with DIPG, corticospinal tracts and transverse pontine fibers may be visible on conventional T2-weighted images as relative T2 hypointense structures within the surrounding T2 hyperintense tumor. We show T2-weighted images, ADC maps and FA color maps of three patients with DIPG and explain how DTI aids in the differentiation of fiber tracts. The involvement of whiter matter tracts in patients with DIPG has been previously been investigated in great detail (Helton et al., 2006; Helton et al., 2008). The authors describe 4 categories of tract involvement (Helton et al., 2006): Displaced tracts, characterized by normal FA values (Fig. 4 on page 17 and Fig. 5 on page 18) Page 11 of 30
12 Edematous tracts, which appeared T2 hyperintense, but were characterized by normal FA values Infiltrated tracts, which had low FA values, but remained visible on the FA color maps Disrupted tracts, which had low FA values and were not anymore visible on the FA color maps. We applied the approach as described above in our patient cohort and we illustrate different patterns of fiber tract involvement in three representative cases of DIPG. RESULTS 1. Hemorrhage and calcification: SWI Seventeen children (9F/8M, age: 3-17yrs) with DIPG were evaluated for the presence of intratumoral hemorrhagic lesions at baseline and during combined treatment with the angiogenesis inhibitor vandetanib and conformal radiation therapy. Hemorrhages were defined as hematoma if the lesion was equal to or larger than 5 mm and as petechial hemorrhages if it measured less than 5 mm in diameter (Kidwell and Wintermark, 2008). We found that: 47% of patients presented with at least one hemorrhage at baseline. By 6 months of treatment, 88.2% of patients presented with at least one hemorrhagic lesion Lesion diameters ranged between 0.10 and 2.56 cm. 5.22% of lesions were hematomas. No significant neurological event was recorded in our patients regardless of the number and size of intratumoral hemorrhages. The number of hemorrhages identified by SWI in our study was higher as compared to previous reports (Broniscer et al., 2006; Hargrave et al., 2008; Kaplan et al., 1996; Packer et al., 1993; Smith et al., 1990), and we believe that those constitute an important differential diagnostic category of T2 hypointensities. Our higher incidence numbers are most likely due to the superior sensitivity of SWI compared to T1-weighted, T2-weighted and T2*-GRE used in earlier studies. 2. Foci of anaplasia: DWI, DSC perfusion and MRS MR images of 86 patients with DIPG who were treated at our institution between 2004 and 2009 were retrospectively reviewed. Intratumoral T2 hypointense lesion Page 12 of 30
13 components fulfilling all aforementioned MRI criteria were identified in 10 patients at initial diagnostic MRI work-up (11%, 6M/4F, mean age 5.8 yrs). T2 hypointense foci which showed contrast enhancement and restricted water diffusion could be divided into 3 subgroups (Fig. 6 on page 19): Small, well-defined (focal) T2 hypointense lesion Larger, less well-defined (diffuse) T2 hypointense lesion T2 hypointense lesion with central necrosis (often, but not always, larger and less well-defined) ADC values were significantly lower (p<0.01) in T2HIF (1.2±0.4 DWI 2 2 µm /ms) compared to TU (1.8±0.2 µm /ms), suggesting increased hypercellularity of T2HIF compared to the rest of the tumor. DSC perfusion rcbv was significantly higher (p=0.014) in T2HIF (1.45±0.72) compared to TU (0.85±0.44). Fig. 7 on page shows the CBV map of a patient with suspected focal anaplasia demonstrating increased perfusion within the right pons. rcbf did not differ significantly (p=0.25) when T2HIF (0.88±0.43) were compared to TU (0.72±0.37). MR spectroscopy The tumor of this patient with DIPG (Fig. 8 on page 20, the same patient as described in Fig. 7) showed an exophytic component with faint T2 hyposignal which was characterized by contrast enhancement and restricted water diffusion on the ADC map (white arrows). Multi-voxel MRS demonstrated a prominent increase of Cho/NAA ratio in this area. This is in keeping with the DSC perfusion MRI findings with the same area showing significantly increased relative cerebral blood volume compared to the rest of the tumor. In addition, the images obtained in this patient nicely demonstrate the differential diagnosis of fiber tracts (black arrow) which show no contrast enhancement and diffusion restriction. On the FA map, fibers of the exophytic component seem somewhat disturbed (white arrow), while the corticospinal tracts can be confidently identified (black arrow). 3. Fiber tracts: DTI Page 13 of 30
14 Patient 1 (Fig. 9 on page 21) On T2-weighted imaging, hypointensities can be delineated within the anterior pons (black arrow). Based on their location, these are likely corticospinal tracts, visualized because of the surrounding T2 hyperintense tumor. This is in consistence with the FA map which suggests that the corticospinal tracts are fairly intact on the left (dark blue). There seems to be an incomplete loss of anisotropy on the right (light blue). The transverse pontine fibers are visualized on the T2-weighted image, but their normal appearance on the FA color map is lost. Patient 2 (Fig. 10 on page 22): T2 hypointensities can be identified within both hemispheres of the pons (black and white arrows). On FA maps, these appear to be intact fiber tracts, displace by tumor tissue. Patient 3 (Fig. 11 on page 23) The two T2 hypointensities in this patient are distinct from each other. Corticospinal tracts of both hemispheres are displaced to the left (black arrows). The lesion on the right (white arrow) is characterized by contrast enhancement (not shown), central necrosis and low ADC. Therefore, the lesion fits into the category of focal anaplasia. On the FA color map, this lesion shows a disturbed pattern suggesting disruption of fiber tracts. Page 14 of 30
15 Images for this section: Fig. 0: Hemorrhage (white arrow) and calcification (black arrow) show identical signal properties on magnitude images (left, top). However, the SWI phase image (left, bottom) shows hypersignal for the hemorrhagic lesion and hyposignal for the calcification (confirmed by CT, right) allowing differentiation of the two entities. Important note: the appearance of hemorrhage and calcification on SWI phase images depends on the signal encoding, is vendor specific and may be inverted (Deistung et al., 2006). Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 15 of 30
16 Fig. 0: SWI datasets included magnitude (upper left) and phase (upper right) images as well as SWI maps (lower left) and minimum intensity projection (lower right) images. Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 16 of 30
17 Fig. 0: Appearance of a normal pons on FA color maps. The corticospinal tracts (black arrows), medial lemnisci (white arrows) and transverse pontine fibers (white dotted arrow) are visualized. Fibers in superior-inferior direction are coded with blue color, in left-right direction in red and in anterior-posterior direction they are displayed in green color. Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 17 of 30
18 Fig. 0: T2 weighted image of DIPG displacing the corticospinal tracts (arrows). Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 18 of 30
19 Fig. 0: FA color map of DIPG displacing transverse pontine fibers (white arrow) and medial lemnisci (dotted white arrow). Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 19 of 30
20 Fig. 0: Varying appearance of T2 hypointense lesions in DIPG presenting with contrast enhancement and restricted water diffusion: small, focal (top row) and larger, diffuse (middle row) T2 hypointense lesion and T2 hypointense lesion with central necrosis (bottom row). Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 20 of 30
21 Fig. 0: Value of MR spectroscopy. The tumor of this patient with DIPG showed an exophytic component with faint T2 hyposignal (white arrows) which was characterized by contrast enhancement and restricted water diffusion (Trace and ADC map). Multi-voxel MRS demonstrated a prominent increase of Cho/NAA ratio in this area as high as In addition, these images nicely demonstrate the differential diagnosis of fiber tracts (black arrow) which show no contrast enhancement and diffusion restriction. On the FA map, fibers of the exophytic component seem somewhat disturbed (white arrow), while the corticospinal tracts can be identified confidently (black arrow). Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 21 of 30
22 Fig. 0: Fiber tracts, patient 1: Corticospinal tracts can be identified on the T2-weighted image. The FA map suggests they are fairly intact on the left (dark blue), but seem to be an incomplete loss of anisotropy on the right (light blue). The transverse pontine fibers are visualized on the T2-weighted image, but their normal appearance on the FA color map is lost. Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Fig. 0: Fiber tracts, patient 2: T2 hypointensities can be identified within both hemispheres of the pons (black and white arrows). On FA maps, these appear to be intact fiber tracts, displace by tumor tissue to different degree. Page 22 of 30
23 Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Fig. 0: Fiber tracts, patient 3: Two distinct T2 hypointensities are present in this patient. Corticospinal tracts of both hemispheres are displaced to the left (black arrows). The lesion on the right (white arrow) likely corresponds to focal anaplasia which shows a disturbed pattern on the FA maps suggestive of disrupted fiber tracts. Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 23 of 30
24 Conclusion 1. Hemorrhage and calcification: SWI SWI allows the most confident identification of hemorrhage and their differentiation from calcification using phase images. Petechial hemorrhages in patients with DIPG are more frequently identified using SWI than conventional MR sequences, including T2*-GRE. Hematomas (>0.5cm) are rare (likely also explaining the lack of significant adverse neurological correlates in our study). Intratumoral hemorrhages increase in number during treatment. The significance of these finding needs to be determined in future studies. 2. Foci of anaplasia: DWI, DSC perfusion and MRS Intratumoral T2 hypointense foci are relatively rare, but not exceptional in DIPG at diagnosis. Their recognition based on conventional MRI is fairly straightforward, but their significance is yet poorly understood. Lower ADC values indicate higher cellularity. Higher rcbv values are likely related to angioneogenesis and resultant expansion of the intralesional blood compartment compared to T2 hyperintense tumor. Our data support the hypothesis that T2 hypointense foci within DIPG may indeed correspond to areas of focal anaplasia, if they meet the above criteria. 3. Fiber tracts: DTI FA color maps aid in the identification of fiber tracts and help determine the tumor involvement of fiber tracts (which may be related to neurological disability). We propose a diagnostic algorithm for the differentiation of T2 hypointense lesion components in DIPG, shown in Fig. 1 on page 25. Page 24 of 30
25 Images for this section: Fig. 0: Diagnostic algorithm for the differentiation of T2 hypointense lesions in DIPG. Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 25 of 30
26 Personal Information Dear Reader, Thank you for your interest in our research. If you have any comments or questions, please do not hesitate to contact us. It would be a pleasure to discuss our work with you in more detail. We are very much looking forward to hear from you! Ulrike Löbel, MD Postdoctoral Research Associate ulrike.loebel@stjude.org Zoltán Patay, MD, PhD Chief, Section of Neuroradiology zoltan.patay@stjude.org 262 Danny Thomas Place Mail Stop 220 Memphis, TN USA Page 26 of 30
27 Images for this section: Fig. 0: St. Jude Children's Research Hospital, Memphis, TN USA Radiological Sciences, St. Jude Children's Research Hospital - Memphis/US Page 27 of 30
28 References Barkovich, A.J., Krischer, J., Kun, L.E., Packer, R., Zimmerman, R.A., Freeman, C.R., Wara, W.M., Albright, L., Allen, J.C., Hoffman, H.J., Brain stem gliomas: a classification system based on magnetic resonance imaging. Pediatr Neurosurg 16, Black, P.M., Brain tumors. Part 1. New England Journal of Medicine 324, Broniscer, A., Laningham, F.H., Kocak, M., Krasin, M.J., Fouladi, M., Merchant, T.E., Kun, L.E., Boyett, J.M., Gajjar, A., Intratumoral hemorrhage among children with newly diagnosed, diffuse brainstem glioma. Cancer 106, CBTRUS, Statistical Report: Primary Brain Tumors in the United States, Published by the Central Brain Tumor Registry of the United States. Deistung, A., Mentzel, H.J., Rauscher, A., Witoszynskyj, S., Kaiser, W.A., Reichenbach, J.R., Demonstration of paramagnetic and diamagnetic cerebral lesions by using susceptibility weighted phase imaging (SWI). Z Med Phys 16, Fischbein, N.J., Prados, M.D., Wara, W., Russo, C., Edwards, M.S., Barkovich, A.J., Radiologic classification of brain stem tumors: correlation of magnetic resonance imaging appearance with clinical outcome. Pediatr Neurosurg 24, Gronemeyer, S.A., Langston, J.W., Hanna, S.L., MR imaging detection of calcified intracranial lesions and differentiation from iron-laden lesions. J Magn Reson Imaging 2, Hargrave, D., Bartels, U., Bouffet, E., Diffuse brainstem glioma in children: critical review of clinical trials. Lancet Oncol 7, Helton, K.J., Phillips, N.S., Khan, R.B., Boop, F.A., Sanford, R.A., Zou, P., Li, C.S., Langston, J.W., Ogg, R.J., Diffusion tensor imaging of tract involvement in children with pontine tumors. American Journal of Neuroradiology 27, Page 28 of 30
29 Helton, K.J., Weeks, J.K., Phillips, N.S., Zou, P., Kun, L.E., Khan, R.B., Gajjar, A., Fouladi, M., Broniscer, A., Boop, F., Li, C.S., Ogg, R.J., Diffusion tensor imaging of brainstem tumors: axonal degeneration of motor and sensory tracts. Journal of Neurosurgery-Pediatrics 1, Kaplan, A.M., Albright, A.L., Zimmerman, R.A., Rorke, L.B., Li, H., Boyett, J.M., Finlay, J.L., Wara, W.M., Packer, R.J., Brainstem gliomas in children - A Children's Cancer Group review of 119 cases. Pediatr Neurosurg 24, Kidwell, C.S., Wintermark, M., Imaging of intracranial haemorrhage. Lancet Neurol 7, Lach, B., Al Shail, E., Patay, Z., Spontaneous anaplasia in pilocytic astrocytoma of cerebellum. British Journal of Neurosurgery 17, Law, M., Yang, S., Babb, J.S., Knopp, E.A., Golfinos, J.G., Zagzag, D., Johnson, G., Comparison of cerebral blood volume and vascular permeability from dynamic susceptibility contrast-enhanced perfusion MR imaging with glioma grade. Am J Neuroradiol 25, Law, M., Yang, S., Wang, H., Babb, J.S., Johnson, G., Cha, S., Knopp, E.A., Zagzag, D., Glioma grading: Sensitivity, specificity, and predictive values of perfusion MR imaging and proton MR spectroscopic imaging compared with conventional MR imaging. American Journal of Neuroradiology 24, Mantravadi, R.V.P., Phatak, R., Bellur, S., Liebner, E.J., Haas, R., Brain stem gliomas: an autopsy study of 25 cases. Cancer 49, McKnight, T.R., von dem Bussche, M.H., Vigneron, D.B., Lu, Y., Berger, M.S., McDermott, M.W., Dillon, W.P., Graves, E.E., Pirzkall, A., Nelson, S.J., Histopathological validation of a three-dimensional magnetic resonance spectroscopy index as a predictor of tumor presence. J Neurosurg 97, Packer, R.J., Boyett, J.M., Zimmerman, R.A., Rorke, L.B., Kaplan, A.M., Albright, A.L., Selch, M.T., Finlay, J.L., Hammond, G.D., Wara, W.M., Hyperfractionated radiation therapy (72 Gy) for children with brain stem gliomas. A Childrens Cancer Group Phase I/II Trial. Cancer 72, Page 29 of 30
30 Rumboldt, Z., Camacho, D.L.A., Lake, D., Welsh, C.T., Castillo, M., Apparent diffusion coefficients for differentiation of cerebellar tumors in children. American Journal of Neuroradiology 27, Smith, R.R., Zimmerman, R.A., Packer, R.J., Hackney, D.B., Bilaniuk, L.T., Sutton, L.N., Goldberg, H.I., Grossman, R.I., Schut, L., Pediatric brainstem glioma. Postradiation clinical and MR follow-up. Neuroradiology 32, Stadlbauer, A., Gruber, S., Nimsky, C., Fahlbusch, R., Hammen, T., Buslei, R., Tomandl, B., Moser, E., Ganslandt, O., Preoperative grading of gliomas by using metabolite quantification with high-spatial-resolution proton MR spectroscopic imaging. Radiology 238, Tzika, A.A., Astrakas, L.G., Zarifi, M.K., Zurakowski, D., Poussaint, T.Y., Goumnerova, L., Tarbell, N.J., Black, P.M., Spectroscopic and perfusion magnetic resonance imaging predictors of progression in pediatric brain tumors. Cancer 100, Yoshimura, J., Onda, K., Tanaka, R., Takahashi, H., Clinicopathological study of diffuse type brainstem gliomas: Analysis of 40 autopsy cases. Neurologia MedicoChirurgica 43, Page 30 of 30
Brainstem diffuse gliomas: radiologic findings.
Brainstem diffuse gliomas: radiologic findings. Poster No.: C-2220 Congress: ECR 2013 Type: Educational Exhibit Authors: E. GARCIA MARTINEZ 1, D. H. Jiménez 1, L. Navarro Vilar 2, C. P. Fernandez Ruiz
More informationOligodendroglioma: imaging findings, radio-pathological correlation and evolution
Oligodendroglioma: imaging findings, radio-pathological correlation and evolution Poster No.: C-2104 Congress: ECR 2013 Type: Authors: Keywords: DOI: Scientific Exhibit A. Hernandez Castro, M. D. Monedero
More informationPI-RADS classification: prognostic value for prostate cancer grading
PI-RADS classification: prognostic value for prostate cancer grading Poster No.: C-1622 Congress: ECR 2014 Type: Scientific Exhibit Authors: I. Platzek, A. Borkowetz, T. Paulus, T. Brauer, M. Wirth, M.
More informationChronology of normal brain myelination in newborns with MR imaging
Chronology of normal brain myelination in newborns with MR imaging Poster No.: C-0577 Congress: ECR 2012 Type: Authors: Keywords: DOI: Scientific Exhibit F. Fernandez Usagre; Sevilla/ES Neuroradiology
More informationDiffusion-weighted imaging and ADC mapping in the differentiation of intraventricular brain tumors
Diffusion-weighted imaging and ADC mapping in the differentiation of intraventricular brain tumors Poster No.: C-2652 Congress: ECR 2010 Type: Educational Exhibit Topic: Neuro Authors: M. Gavrilov, T.
More informationA New Trend in Vascular Imaging: the Arterial Spin Labeling (ASL) Sequence
A New Trend in Vascular Imaging: the Arterial Spin Labeling (ASL) Sequence Poster No.: C-1347 Congress: ECR 2013 Type: Educational Exhibit Authors: J. Hodel, A. GUILLONNET, M. Rodallec, S. GERBER, R. 1
More informationThe follow-up of uterine fibroids treated with HIFU: role of DWI and Dynamic contrast-study MRI
The follow-up of uterine fibroids treated with HIFU: role of DWI and Dynamic contrast-study MRI Poster No.: C-1137 Congress: ECR 2011 Type: Authors: Keywords: DOI: Scientific Exhibit V. Zampa, V. Vallini,
More informationEffect of intravenous contrast medium administration on prostate diffusion-weighted imaging
Effect of intravenous contrast medium administration on prostate diffusion-weighted imaging Poster No.: C-1766 Congress: ECR 2015 Type: Authors: Keywords: DOI: Scientific Exhibit J. Bae, C. K. Kim, S.
More informationHemodynamic patterns of status epilepticus detected by susceptibility weighted imaging (SWI)
Hemodynamic patterns of status epilepticus detected by susceptibility weighted imaging (SWI) Poster No.: C-1086 Congress: ECR 014 Type: Scientific Exhibit Authors: J. AELLEN, E. Abela, R. Kottke, E. Springer,
More informationDTI fiber tracking at 3T MR using b-1000 value in the depiction of periprostatic nerve before and after nervesparing prostatectomy
DTI fiber tracking at 3T MR using b-1000 value in the depiction of periprostatic nerve before and after nervesparing prostatectomy Poster No.: C-2328 Congress: ECR 2012 Type: Scientific Paper Authors:
More informationWhole brain CT perfusion maps with paradoxical low mean transit time to predict infarct core
Whole brain CT perfusion maps with paradoxical low mean transit time to predict infarct core Poster No.: B-292 Congress: ECR 2011 Type: Scientific Paper Topic: Neuro Authors: S. Chakraborty, M. E. Ahmad,
More informationAmide Proton Transfer Imaging: A Novel MR Method for High-grade Brain Tumors.
Amide Proton Transfer Imaging: A Novel MR Method for High-grade Brain Tumors. Poster No.: C-1732 Congress: ECR 2013 Type: Scientific Exhibit Authors: M. Ida, M. Ishizuka, T. Suzuki, Y. Kubo, K. Hino, S.
More informationDuret hemorraghe caused by traumatic brain injury: what the radiologist should know.
Duret hemorraghe caused by traumatic brain injury: what the radiologist should know. Poster No.: C-1270 Congress: ECR 2012 Type: Educational Exhibit Authors: P. Dewachter 1, T. Vanderhasselt 1, K. De Smet
More informationNeuromyelitis Optica Spectrum Disorder (NMOSD): Brain MRI findings in patients at our institution and literature review.
Neuromyelitis Optica Spectrum Disorder (NMOSD): Brain MRI findings in patients at our institution and literature review. Poster No.: C-0817 Congress: ECR 2014 Type: Educational Exhibit Authors: G. I. MICHELIN,
More informationIntracranial haemorrhage on phase images of SWI (susceptibility weighted image)
Intracranial haemorrhage on phase images of SWI (susceptibility weighted image) Poster No.: C-1088 Congress: ECR 2014 Type: Scientific Exhibit Authors: Y. J. LEE, H. S. Choi, B.-Y. Kim, J. Jang, S. L.
More informationDiffusion-weighted MR imaging for Diagnosis of Uterine Leiomyomas
Diffusion-weighted MR imaging for Diagnosis of Uterine Leiomyomas Poster No.: C-0111 Congress: ECR 2015 Type: Scientific Exhibit Authors: A. Er 1, G. Pekindil 2, M. Gök 3, A. R. Kandiloglu 2, A. G. Tamay
More informationCT and MR findings of systemic lupus erythematosus involving the brain: Differential diagnosis based on lesion distribution
CT and MR findings of systemic lupus erythematosus involving the brain: Differential diagnosis based on lesion distribution Poster No.: C-2723 Congress: ECR 2010 Type: Educational Exhibit Topic: Neuro
More informationCerebral malaria: MR imaging spectrum
Cerebral malaria: MR imaging spectrum Poster No.: C-2705 Congress: ECR 2010 Type: Educational Exhibit Topic: Neuro Authors: P. S. Naphade, M. D. Agrawal, S. S. Sankhe, K. M. Siva, B. K. Jain; Mumbai/IN
More informationUsing diffusion-tensor imaging and tractography (DTT) to study biological characteristics of glyoma in brain stem for neurosurgical planning
Using diffusion-tensor imaging and tractography (DTT) to study biological characteristics of glyoma in brain stem for neurosurgical planning Poster No.: C-0016 Congress: ECR 2014 Type: Authors: Keywords:
More informationComparison of Image quality in temporal bone MRI at 3T using 2D selective RF excitation versus a routine SPACE sequence
Comparison of Image quality in temporal bone MRI at 3T using 2D selective RF excitation versus a routine SPACE sequence Poster No.: C-1065 Congress: ECR 2015 Type: Authors: Keywords: DOI: Scientific Exhibit
More informationRole of 3D T2 weighted imaging at 3T in evaluation of cranial nerve pathologies - An overview
Role of 3D T2 weighted imaging at 3T in evaluation of cranial nerve pathologies - An overview Poster No.: C-1153 Congress: ECR 2013 Type: Educational Exhibit Authors: V. Kasi Arunachalam 1, R. Renganathan
More informationMR imaging at 3.0 tesla of glossopharyngeal neuralgia by neurovascular compression
MR imaging at 3.0 tesla of glossopharyngeal neuralgia by neurovascular compression Poster No.: C-1281 Congress: ECR 2011 Type: Scientific Exhibit Authors: M. Nishihara 1, T. Noguchi 1, H. Irie 1, K. Sasaguri
More informationDifferentiation of osteoporosis from metastasis in the vertebral fracture using chemical shift and diffusion weighted imaging
Differentiation of osteoporosis from metastasis in the vertebral fracture using chemical shift and diffusion weighted imaging Poster No.: C-0444 Congress: ECR 2012 Type: Educational Exhibit Authors: H.
More informationOptimized phase contrast MRV technique outperforms timeof-flight in the diagnosis of cerebral venous thrombosis
Optimized phase contrast MRV technique outperforms timeof-flight in the diagnosis of cerebral venous thrombosis Poster No.: C-3377 Congress: ECR 2010 Type: Topic: Authors: Keywords: DOI: Scientific Exhibit
More information"Ultrasound measurements of the lateral ventricles in neonates: A comparison of multiple measurements methods."
"Ultrasound measurements of the lateral ventricles in neonates: A comparison of multiple measurements methods." Poster No.: C-1557 Congress: ECR 2014 Type: Authors: Keywords: DOI: Educational Exhibit I.
More informationDiffusion-weighted MRI (DWI) "claw sign" is useful in differentiation of infectious from degenerative Modic I signal changes of the spine
Diffusion-weighted MRI (DWI) "claw sign" is useful in differentiation of infectious from degenerative Modic I signal changes of the spine Poster No.: C-0894 Congress: ECR 2012 Type: Scientific Exhibit
More informationSpinal injury is very common in Ireland: 19 per 100,000 (1). It poses a significant disease burden.
MRI in traumatic spinal cord injury: a single national spinal centre experience and study of imaging features with clinical correlation with ASIA score and outcome Poster No.: C-1235 Congress: ECR 2011
More informationSicle-cell disease and silent cerebral infarcts evaluated with magnetic resonance imaging
Sicle-cell disease and silent cerebral infarcts evaluated with magnetic resonance imaging Poster No.: C-0243 Congress: ECR 2015 Type: Educational Exhibit Authors: E. Solomou, A. Rigopoulou, P. Kraniotis,
More informationClinical application of 3.0 T proton MR spectroscopy in evaluation of pancreatic diseases
Clinical application of 3.0 T proton MR spectroscopy in evaluation of pancreatic diseases Award: Cum Laude Poster No.: C-1762 Congress: ECR 2012 Type: Scientific Paper Authors: T. Su, E. Jin; Beijing/CN
More informationWhite matter diseases affecting the corpus callosum; demyelinating and metabolic diseases
White matter diseases affecting the corpus callosum; demyelinating and metabolic diseases Poster No.: C-0199 Congress: ECR 2011 Type: Educational Exhibit Authors: J. H. Yoo; Seoul/KR Keywords: Neuroradiology
More informationMRI perfusion of brain tumors: any differences between supratentorial and infratentorial?
MRI perfusion of brain tumors: any differences between supratentorial and infratentorial? Poster No.: C-2034 Congress: ECR 2012 Type: Scientific Paper Authors: M. Martucci, S. Gaudino, C. Schiarelli, R.
More informationSingle cold nodule in Graves' disease: benign vs malignant
Single cold nodule in Graves' disease: benign vs malignant Poster No.: C-0073 Congress: ECR 2011 Type: Authors: Keywords: DOI: Scientific Paper L. I. Sonoda, M. Halim, K. Balan; Cambridge/UK Head and neck,
More informationQuantification of liver steatosis in MRI: available techniques and use of transverse magnetization decay curve in patients with iron overload
Quantification of liver steatosis in MRI: available techniques and use of transverse magnetization decay curve in patients with iron overload Poster No.: C-1302 Congress: ECR 2013 Type: Educational Exhibit
More informationA pictorial review of normal anatomical appearences of Pericardial recesses on multislice Computed Tomography.
A pictorial review of normal anatomical appearences of Pericardial recesses on multislice Computed Tomography. Poster No.: C-1787 Congress: ECR 2012 Type: Educational Exhibit Authors: N. Ahmed 1, G. Avery
More informationTumefactive multiple sclerosis lesions: Diagnostic challenge for the radiologist
Tumefactive multiple sclerosis lesions: Diagnostic challenge for the radiologist Poster No.: C-0679 Congress: ECR 2015 Type: Educational Exhibit Authors: A. Gargallo Vaamonde, M. Iridoy Zulet, I. Rubio
More informationPerfusion CT and perfusion MRI combined study in patients treated for glioblastoma multiforme: a pilot study
Perfusion CT and perfusion MRI combined study in patients treated for glioblastoma multiforme: a pilot study Poster No.: C-0789 Congress: ECR 2012 Type: Scientific Paper Authors: P. AMATUZZO, S. Zizzari,
More informationDiffuse Alveolar Hemorrhage: Initial and Follow-up HRCT Features
Diffuse Alveolar Hemorrhage: Initial and Follow-up HRCT Features Poster No.: E-0037 Congress: ESTI 2012 Type: Authors: Keywords: Scientific Exhibit M. Y. Kim; Seoul/KR Lung, CT-High Resolution, CT, Computer
More informationIntrahepatic cholangiocarcinoma: diffusion-weighted MR imaging findings
Intrahepatic cholangiocarcinoma: diffusion-weighted MR imaging findings Poster No.: C-1979 Congress: ECR 2013 Type: Authors: Keywords: DOI: Scientific Exhibit S. Schmidt, A. Pomoni, F. Becce, A. Denys,
More informationAnatomical Variations of the Levator Scapulae Muscle - an MR Imaging Study
Anatomical Variations of the Levator Scapulae Muscle - an MR Imaging Study Poster No.: R-0016 Congress: 2015 ASM Type: Scientific Exhibit Authors: J. Au, A. Webb, G. Buirski, P. Smith, M. Pickering, D.
More informationApplication of three-dimensional angiography in elderly patients with meningioma
Application of three-dimensional angiography in elderly patients with meningioma Poster No.: C-0123 Congress: ECR 2012 Type: Scientific Paper Authors: X. Han, J. Chen, K. Shi; Haikou/CN Keywords: Neuroradiology
More informationIntracranial Lesions: MRI Signs for Localization
Intracranial Lesions: MRI Signs for Localization Poster No.: C-1574 Congress: ECR 2017 Type: Educational Exhibit Authors: M. Cucos, A. Puiu, S. Manole ; Cluj-Napoca/RO, Cluj napoca/ RO Keywords: Cerebrospinal
More informationArtifact in Head CT Images Due to Air Bubbles in X-Ray Tube Oil
Artifact in Head CT Images Due to Air Bubbles in X-Ray Tube Oil Poster No.: C-0671 Congress: ECR 2016 Type: Educational Exhibit Authors: H. Patel 1, W. Liu 2, J. DeSanto 2, S. Meagher 2, M. Zagardo 2,
More informationCT evaluation of small bowel carcinoid tumors
CT evaluation of small bowel carcinoid tumors Poster No.: C-0060 Congress: ECR 2015 Type: Educational Exhibit Authors: N. V. V. P. Costa, L. Nascimento, T. Bilhim ; Estoril/PT, PT, 1 2 3 1 2 3 Lisbon/PT
More information64-MDCT imaging of the pancreas: Scan protocol optimisation by different scan delay regimes
64-MDCT imaging of the pancreas: Scan protocol optimisation by different scan delay regimes Poster No.: C-051 Congress: ECR 2009 Type: Scientific Exhibit Topic: Abdominal and Gastrointestinal Authors:
More informationMR imaging of FIGO stage I uterine cervical cancer: The diagnostic impact of 3T-MRI
MR imaging of FIGO stage I uterine cervical cancer: The diagnostic impact of 3T-MRI Poster No.: C-1191 Congress: ECR 2010 Type: Educational Exhibit Topic: Genitourinary Authors: M. Takeuchi, K. Matsuzaki,
More informationRole of functional MRI in evaluating intraaxial brain tumors Advances and pitfalls.
Role of functional MRI in evaluating intraaxial brain tumors Advances and pitfalls. Poster No.: C-1685 Congress: ECR 2014 Type: Educational Exhibit Authors: A. R. Udare, A. Mahajan, S. Juvekar, P. Shetty,
More informationAssessment of Vasospasm and Delayed Cerebral Ischemia after Subarachnoid Hemorrhage: Current concepts and Value of CT Perfusion and CT Angiography
Assessment of Vasospasm and Delayed Cerebral Ischemia after Subarachnoid Hemorrhage: Current concepts and Value of CT Perfusion and CT Angiography Poster No.: C-2563 Congress: ECR 2012 Type: Educational
More informationSpinal meningioma imaging
Spinal meningioma imaging Poster No.: C-0448 Congress: ECR 2018 Type: Educational Exhibit Authors: M. Smoljan, D. Zadravec ; Zagreb/HR, Zageb/HR Keywords: Neoplasia, Imaging sequences, Education, MR, CT,
More informationSeemingly isolated greater trochanter fractures do not exist
Seemingly isolated greater trochanter fractures do not exist Poster No.: B-0950 Congress: ECR 2012 Type: Scientific Paper Authors: D. Dunker, J. H. Göthlin, M. Geijer ; Gothenburg/SE, Lund/SE Keywords:
More information3D ultrasound applied to abdominal aortic aneurysm: preliminary evaluation of diameter measurement accuracy
3D ultrasound applied to abdominal aortic aneurysm: preliminary evaluation of diameter measurement accuracy Poster No.: C-0493 Congress: ECR 2011 Type: Authors: Keywords: DOI: Scientific Paper A. LONG
More informationMRI BI-RADS: How to make it out?
MRI BI-RADS: How to make it out? Poster No.: C-1850 Congress: ECR 2016 Type: Educational Exhibit Authors: M. Ben Ammar, A. Ben Miled, O. Ghdes, S. Harguem, A. Gaja, N. Mnif; Tunis/TN Keywords: Breast,
More informationValsalva-manoeuvre or prone belly position for computed tomography (CT) scan when an orbita varix is suspected: a single-case study.
Valsalva-manoeuvre or prone belly position for computed tomography (CT) scan when an orbita varix is suspected: a single-case study. Poster No.: C-0512 Congress: ECR 2012 Type: Authors: Keywords: DOI:
More informationEvaluation of BI-RADS 3 lesions in women with a high risk of hereditary breast cancer.
Evaluation of BI-RADS 3 lesions in women with a high risk of hereditary breast cancer. Poster No.: C-0346 Congress: ECR 2014 Type: Scientific Exhibit Authors: A. Thomas 1, R. Dominguez Oronoz 1, S. Roche
More informationThe role of T2-weighted imaging in detecting prostate cancer of the central zone in 3T multiparametric magnetic resonance examination
The role of T2-weighted imaging in detecting prostate cancer of the central zone in 3T multiparametric magnetic resonance examination Poster No.: C-2317 Congress: ECR 2014 Type: Scientific Exhibit Authors:
More informationBreast cancer tumor size: Correlation between MRI and histopathology
Breast cancer tumor size: Correlation between MRI and histopathology Poster No.: C-0409 Congress: ECR 2010 Type: Topic: Scientific Exhibit Breast Authors: H. Khan, M. Hoosein, M. Alattar, S. Tenant, L.
More informationTriple-negative breast cancer: which typical features can we identify on conventional and MRI imaging?
Triple-negative breast cancer: which typical features can we identify on conventional and MRI imaging? Poster No.: C-1862 Congress: ECR 2013 Type: Educational Exhibit Authors: V. Bertani 1, A. Gualano
More informationThe visualization of periprostatic nerve fibers using Diffusion Tensor Magnetic Resonance Imaging with tractography
The visualization of periprostatic nerve fibers using Diffusion Tensor Magnetic Resonance Imaging with tractography Poster No.: C-0009 Congress: ECR 2014 Type: Scientific Exhibit Authors: K. Kitajima 1,
More informationSoft tissues lymphoma, the great pretender. MRI diagnostic keys.
Soft tissues lymphoma, the great pretender. MRI diagnostic keys. Poster No.: C-2133 Congress: ECR 2015 Type: Educational Exhibit Authors: L. Caminero, M. E. Banegas Illescas, M. L. Rozas, M. Y. Torres,
More informationComputed tomography and Modified RECIST criteria for assessment of response in malignant pleural mesothelioma
Computed tomography and Modified RECIST criteria for assessment of response in malignant pleural mesothelioma Poster No.: C-0729 Congress: ECR 2013 Type: Scientific Exhibit Authors: A. Marin, I. Pozek,
More informationPresence and severity of carotid siphon calcification on computed tomography images in mild cognitive impairment
Presence and severity of carotid siphon calcification on computed tomography images in mild cognitive impairment Poster No.: C-2117 Congress: ECR 2013 Type: Scientific Exhibit Authors: S. Rutkauskas, S.
More informationImaging the post-operative spine - are we united in where we stand?
Imaging the post-operative spine - are we united in where we stand? Poster No.: C-2424 Congress: ECR 2015 Type: Authors: Keywords: DOI: Scientific Exhibit J. Kumaraguru, N. Kandasamy, D. A. Elias, J. M.
More informationMalignant Transformation of Endometriosis: Magnetic Resonance Imaging Aspects
Malignant Transformation of Endometriosis: Magnetic Resonance Imaging Aspects Poster No.: C-0084 Congress: ECR 2014 Type: Scientific Exhibit Authors: E. A. Yukhno, I. Trofimenko, G. Trufanov; St. Petersburg/RU
More informationMalignant Transformation of Endometriosis: Magnetic Resonance Imaging Aspects
Malignant Transformation of Endometriosis: Magnetic Resonance Imaging Aspects Poster No.: C-0084 Congress: ECR 2014 Type: Scientific Exhibit Authors: E. A. Yukhno, I. Trofimenko, G. Trufanov; St. Petersburg/RU
More informationDigital breast tomosynthesis (DBT) occult breast cancers: clinical, radiological and histopathological features.
Digital breast tomosynthesis (DBT) occult breast cancers: clinical, radiological and histopathological features. Poster No.: C-1707 Congress: ECR 2015 Type: Scientific Exhibit Authors: V. Vinci 1, A. Iqbal
More informationSignificance of MRI in diagnostics, outcome prognosis and definition the therapeutic tactics for cases of aseptic necrosis of the femoral head
Significance of MRI in diagnostics, outcome prognosis and definition the therapeutic tactics for cases of aseptic necrosis of the femoral head Abstract: 539 Congress: ESMRMB 2013 Type: Scientific Poster
More informationProstate biopsy: MR imaging to the rescue
Prostate biopsy: MR imaging to the rescue Poster No.: C-1855 Congress: ECR 2014 Type: Educational Exhibit Authors: N. V. V. B. Marques 1, J. Ip 1, A. Loureiro 2, J. Niza 1, M. Palmeiro 2, Keywords: DOI:
More informationImaging characterization of renal clear cell carcinoma
Imaging characterization of renal clear cell carcinoma Poster No.: C-0327 Congress: ECR 2011 Type: Educational Exhibit Authors: S. Ballester 1, A. Gaser 2, M. Dotta 1, M. F. CAPPA 1, F. Hammar 1 ; 1 2
More informationTissue characterisation, Cancer, Quality assurance /ecr2015/B-0553
Role of DWI at prostatic lesions at 3T-MRI in the discrimination of grading: correlation of imaging, quantitative analysis and pathology at 189 MR-guided prostate biopsies Poster No.: B-0553 Congress:
More informationComplications of Spontaneous Intracranial Hypotension
Complications of Spontaneous Intracranial Hypotension Poster No.: C-0890 Congress: ECR 2015 Type: Authors: Keywords: DOI: Scientific Exhibit K. Endo, Y. Kubo, M. Ida; Tokyo/JP Hemorrhage, Embolism / Thrombosis,
More informationVitamin B12 deficiency induced myelopathy: MRI findings
Vitamin B12 deficiency induced myelopathy: MRI findings Poster No.: C-3386 Congress: ECR 2010 Type: Topic: Authors: Keywords: DOI: Educational Exhibit Neuro J. C. Röper-Kelmayr, D. Flöry, M. Guger, F.
More informationCT perfusion in Moyamoya disease
CT perfusion in Moyamoya disease Poster No.: C-1726 Congress: ECR 2015 Type: Scientific Exhibit Authors: K. C. Lam, C. P. Tsang, K. K. Wong, R. LEE ; HK, Hong Kong/HK Keywords: Hemodynamics / Flow dynamics,
More informationThrombus hounsfield unit on CT predicts vascular recanalization in stroke patients
Thrombus hounsfield unit on CT predicts vascular recanalization in stroke patients Poster No.: C-2616 Congress: ECR 2010 Type: Scientific Exhibit Topic: Neuro Authors: H. F.Termes, J. Puig, J. Daunis-i-Estadella,
More informationThe tale of global hypoxic ischaemic injury
The tale of global hypoxic ischaemic injury Poster No.: C-0400 Congress: ECR 2016 Type: Educational Exhibit Authors: L. M. Zammit, R. Grech ; Paola/MT, Dublin 9/IE Keywords: CNS, CT, MR, Education, Computer
More informationSlowly growing malignant nodules and rapidly growing benign nodules: Evaluation of the value of volume doubling time
Slowly growing malignant nodules and rapidly growing benign nodules: Evaluation of the value of volume doubling time Poster No.: C-208 Congress: ECR 2009 Type: Educational Exhibit Topic: Chest Authors:
More informationEmerging Referral Patterns for Whole-Body Diffusion Weighted Imaging (WB-DWI) in an Oncology Center
Emerging Referral Patterns for Whole-Body Diffusion Weighted Imaging (WB-DWI) in an Oncology Center Poster No.: C-1296 Congress: ECR 2014 Type: Scientific Exhibit Authors: G. Petralia 1, G. Conte 1, S.
More informationHigh density thrombi of pulmonary embolism on precontrast CT scan: Is it dangerous?
High density thrombi of pulmonary embolism on precontrast CT scan: Is it dangerous? Poster No.: C-1753 Congress: ECR 2013 Type: Authors: Keywords: DOI: Scientific Exhibit B. Y. Lee, H. R. KIM, J. I. Jung,
More informationEthanol ablation of benign thyroid cysts and predominantly cystic thyroid nodules: factors that predict outcome.
Ethanol ablation of benign thyroid cysts and predominantly cystic thyroid nodules: factors that predict outcome. Poster No.: C-0322 Congress: ECR 2014 Type: Authors: Keywords: DOI: Scientific Exhibit J.
More informationSonographic and Mammographic Features of Phyllodes Tumours of the Breast: Correlation with Histological Grade
Sonographic and Mammographic Features of Phyllodes Tumours of the Breast: Correlation with Histological Grade Poster No.: C-0046 Congress: ECR 2014 Type: Authors: Keywords: DOI: Scientific Exhibit C. Y.
More informationIdentification and numbering of lumbar vertebrae using various anatomical landmarks on MRI of lumbosacral spine
Identification and numbering of lumbar vertebrae using various anatomical landmarks on MRI of lumbosacral spine Poster No.: C-2125 Congress: ECR 2015 Type: Authors: Scientific Exhibit S. patil 1, A. M.
More informationBasic low - field MR imaging of meniscal injuries in children.
Basic low - field MR imaging of meniscal injuries in children. Poster No.: C-2365 Congress: ECR 2012 Type: Authors: Keywords: DOI: Scientific Exhibit A. Yakimov, M. Nikonova, E. Prokhorova, D. Vybornov,
More informationUltrasound assessment of T1 Squamous Cell Carcinomas of the Tongue.
Ultrasound assessment of T1 Squamous Cell Carcinomas of the Tongue. Poster No.: C-2014 Congress: ECR 2015 Type: Educational Exhibit Authors: S. R. Rice, G. Price, L. Firmin, S. Morley, T. Beale; London/UK
More information3D cine PCA enables rapid and comprehensive hemodynamic assessment of the abdominal aorta
3D cine PCA enables rapid and comprehensive hemodynamic assessment of the abdominal aorta Poster No.: C-1138 Congress: ECR 2013 Type: Scientific Exhibit Authors: M. Takahashi 1, Y. Takehara 2, H. Isoda
More informationQuantitative imaging of hepatic cirrhosis on abdominal CT images
Quantitative imaging of hepatic cirrhosis on abdominal CT images Poster No.: C-0556 Congress: ECR 2013 Type: Authors: Keywords: DOI: Scientific Exhibit S. Kido, A. Nakamura, Y. Hirano; Ube/JP Cirrhosis,
More informationPrognostic value of CT texture analysis in patients with nonsmall cell lung cancer: Comparison with FDG-PET
Prognostic value of CT texture analysis in patients with nonsmall cell lung cancer: Comparison with FDG-PET Poster No.: C-0784 Congress: ECR 2010 Type: Scientific Exhibit Topic: Chest Authors: B. Ganeshan
More informationImaging findings in neonates with hypoxic-ischaemic encephalopathy and terapeutic hypothermia.
Imaging findings in neonates with hypoxic-ischaemic encephalopathy and terapeutic hypothermia. Poster No.: C-1577 Congress: ECR 2014 Type: Scientific Exhibit Authors: S. Manso Garcia, M. J. Velasco Marcos,
More informationMRI and MRCP in acute edematous interstitial pancreatitis
MRI and MRCP in acute edematous interstitial pancreatitis Poster No.: C-0212 Congress: ECR 2010 Type: Scientific Exhibit Topic: Abdominal Viscera (Solid Organs) - Pancreas Authors: M. Di Girolamo, A. Grossi,
More informationSpectrum of findings of sclerosing adenosis at breast MRI.
Spectrum of findings of sclerosing adenosis at breast MRI. Poster No.: C-0738 Congress: ECR 2012 Type: Scientific Exhibit Authors: F. Vasselli 1, F. Pediconi 2, M. Telesca 2, M. Luciani 2, V. Casali 2,
More informationReliability of the pronator quadratus fat pad sign to predict the severity of distal radius fractures
Reliability of the pronator quadratus fat pad sign to predict the severity of distal radius fractures Poster No.: C-0669 Congress: ECR 2014 Type: Scientific Exhibit Authors: J. Tonak, I. Wobbe, R. L. Duschka,
More informationNICE Guidelines for C-Spine Imaging: Real Life Impact
NICE Guidelines for C-Spine Imaging: Real Life Impact Poster No.: C-1367 Congress: ECR 2017 Type: Scientific Exhibit Authors: D. Weinberg, I. Djoukhadar, G. Potter; Salford/UK Keywords: Trauma, Audit and
More informationAbdominal fat distribution (subcutaneous vs. visceral abdominal fat compartments): correlation with gender, age, BMI and waist circumference
Abdominal fat distribution (subcutaneous vs. visceral abdominal fat compartments): correlation with gender, age, BMI and waist circumference Poster No.: C-934 Congress: ECR 202 Type: Scientific Exhibit
More informationAFib is the most common cardiac arrhythmia and its prevalence and incidence increases with age (Fuster V. et al. Circulation 2006).
Feasibility, image quality and radiation dose of coronary CT angiography (CCTA) in patients with atrial fibrillation using a new generation 256 multi-detector CT (MDCT) Poster No.: C-2378 Congress: ECR
More informationMonophasic versus biphasic contrast application in CT of patients with head and neck tumour
Monophasic versus biphasic contrast application in CT of patients with head and neck tumour Poster No.: C-3331 Congress: ECR 2010 Type: Topic: Authors: Keywords: DOI: Scientific Exhibit Head and Neck G.
More informationFeasibility of magnetic resonance elastography using myofascial phantom model
Feasibility of magnetic resonance elastography using myofascial phantom model Poster No.: C-0971 Congress: ECR 2013 Type: Scientific Exhibit Authors: H. J. Kang, J.-S. Yoon, S.-J. Hong, C.-H. Oh, S. H.
More informationRadiographic and statistical analysis of Brain Arteriovenous Malformations.
Radiographic and statistical analysis of Brain Arteriovenous Malformations. Poster No.: C-0996 Congress: ECR 2017 Type: Educational Exhibit Authors: C. E. Rodriguez 1, A. Lopez Moreno 1, D. Sánchez Paré
More informationIdiopathic dilatation of the pulmonary artery : radiographic and MDCT features in 6 cases
Idiopathic dilatation of the pulmonary artery : radiographic and MDCT features in 6 cases Poster No.: P-0075 Congress: ESTI 2014 Type: Authors: Educational Poster J. J. Woo 1, K. Y. Lee 2, Y. Cho 1, J.
More informationUltrasonic evaluation of superior mesenteric vein in cancer of the pancreatic head
Ultrasonic evaluation of superior mesenteric vein in cancer of the pancreatic head Poster No.: C-1430 Congress: ECR 2012 Type: Authors: Keywords: DOI: Scientific Exhibit E. Fisenko, N. Vetsheva, E. Pershina;
More informationHyperechoic breast lesions can be malignant.
Hyperechoic breast lesions can be malignant. Poster No.: C-0041 Congress: ECR 2015 Type: Educational Exhibit Authors: G. Babu, R. bradley; Edinburgh/UK Keywords: Breast, Ultrasound, Biopsy, Cancer DOI:
More informationMechanical thrombectomy with stent retriever in acute ischemic stroke: first results.
Mechanical thrombectomy with stent retriever in acute ischemic stroke: first results. Poster No.: C-0829 Congress: ECR 2014 Type: Scientific Exhibit Authors: M. H. J. Voormolen, T. Van der Zijden, I. Baar,
More informationThe "filling defect" sign helps localise the site of intracranial aneurysm rupture on an unenhanced CT
The "filling defect" sign helps localise the site of intracranial aneurysm rupture on an unenhanced CT Poster No.: C-3380 Congress: ECR 2010 Type: Topic: Authors: Keywords: DOI: Educational Exhibit Neuro
More information