Technological development for applying MR Elastography to shoulder muscles
|
|
- Gary Lang
- 5 years ago
- Views:
Transcription
1 Technological development for applying MR Elastography to shoulder muscles Poster No.: C-1003 Congress: ECR 2016 Type: Scientific Exhibit Authors: D. Ito 1, T. Numano 1, T. Onishi 1, K. Mizuhara 1, K. Takamoto 2, H. Keywords: DOI: Nishijyou 2 ; 1 Tokyo/JP, 2 Toyama/JP Tissue characterisation, Inflammation, Image verification, Imaging sequences, Computer Applications-General, MR, Elastography, Soft tissues / Skin, Musculoskeletal soft tissue, MR physics /ecr2016/C-1003 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 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 1 of 13
2 Aims and objectives Palpation remains the fundamental clinical tools to diagnose abnormal stiffness changes in soft tissue. However, palpation is subjective, and detecting stiffness changes is impossible in deep tissues. MR elastography (MRE) is possible to quantitatively measure stiffness of both superficial and deep tissues (1). For throwing athletes, shoulder injuries are more common than any other body part injures, and rotator cuff (supraspinatus, infraspinatus, teres minor, subscapular muscle) injures are often caused (2). Among rotator cuff, it is difficult that the supraspinatus muscle is directly palpated, because it is not anatomically located in superficial. Therefore, the supraspinatus muscle may be the object which is suitable for stiffness measurement by using MRE. The purpose of this study was technological development for applying the MRE technique to the supraspinatus muscle. Page 2 of 13
3 Methods and materials All MRE experiments were performed on a clinical MR imager (Achieva 3.0T; Philips Healthcare, Best, The Netherlands) while using a shoulder coil with the subject in the supine position. Power amplifier (XTi 1000; Crown, IN USA) and a pneumatic pressure generator (Subwoofer TIT320C-4 12"; Dayton Audio, OH, USA) units were used to supply vibration to a vibration pad (Fig. 1a) which was designed by using a 3D printer (3Dtouch; 3D System, SC, USA). The vibration pad was placed over the trapezius muscle on the proximal side of the supraspinatus muscle, and was secured with Velcro straps and an auxiliary tool (Fig. 1a) which was designed by using a 3D printer. Figure 2b-d showed fixing method of the vibration pad. MRE acquisitions were performed with a gradient-echo type multi-echo MR sequence developed by Numano et al (3). In this method, the readout gradient has an effect which sensitizes the tissue motion by vibrations. If readout's gradient lobes are synchronized with vibrations, the readout gradient has the maximum effect. This synchronization can be easily achieved by adjusting the period of bipolar readout gradient lobes and the gap between the first and next echo (#TE) of a multi-echo sequence. We conducted MRE of the supraspinatus muscle at 75 Hz and 100 Hz vibrations, and it was synchronized with 5ms of #TE. The MR phase images (wave image) were recorded with the following parameters: acquisition matrix, 8 number of averages, 2 SENSE reduction factor, 20 flip angle, mm 2 field of view, 5 mm slice thickness, 2.3 ms 1st echo time, 20 ms repitation time, and 80 s total scan time (four vibration phase offsets). In addition, the wave image data were collected in two different readout directions (x, y). Readout direction x was parallel to the orientation of the supraspinatus muscle, and y was perpendicular to it. All wave images were processed by a phase unwrapping and a Gaussian spatial filter (MRE/Wave, MAYO CLINIC) after cutting out the region of the supraspinatus muscle from the obtained images. The regions of interest (ROIs) was set along the inner surface of the supraspinatus muscle (Fig. 2b), and a profile was drawn along the wave propagation in the supraspinatus muscle (Fig. 2c). The ROIs were used to measure the mean amplitude value (MAV) of the propagating wave in the supraspinatus muscle by using the amplitude images (MRE/Wave, MAYO CLINIC). Otherwise, the profile was used to measure the wavelengths (Fig. 2d). Assuming that the supraspinatus muscle was linearly elastic, isotropic, homogeneous, and incompressible, the shear modulus (µ), which represented the local elasticity, was calculated using following equation: µ = #f 2 # 2 Page 3 of 13
4 where # is the supraspinatus muscle density (#1000 kg/m 3 ), f is the frequency and # is the wavelength. Three healthy volunteers in this MRE study. All volunteer studies were done after obtaining informed consent from all volunteers and being approved by our institutional ethnic review board. Page 4 of 13
5 Images for this section: Fig. 1: a: The vibration pad (left) and the auxiliary tool (right). b-d: Fixing method of the vibration pad. - Tokyo/JP Page 5 of 13
6 Fig. 2: a: Axial magnitude image of the supraspinatus muscle. b: This image was made by fusion of the amplitude image with the magnitude image. The yellow ellipse indicates the ROIs of the supraspinatus muscle. c: This image was made by fusion of the wave image with the magnitude image. The yellow line indicates the profile drawn through the propagated wave. d: Representation of the wave traveling along the profile. - Tokyo/JP Page 6 of 13
7 Results This study used 75 and 100 Hz vibrations, respectively. Higher frequencies have shorter wavelengths and better resolution but lower penetration ability. A waveform generator for the supraspinatus muscle needs higher frequencies to provide high resolution, because the supraspinatus muscle is small. In this study, the wave image represented clear wave propagation in the supraspinatus muscle at 100Hz vibration. Therefore, we validated the change in wave propagation in the supraspinatus muscle depending on the readout direction at 100 Hz vibration. Figure 3 demonstrates the change in the mean relative MAV of the supraspinatus muscle in three volunteers depending on the readout direction, normalized with MAV in the y readout direction. The mean relative MAV in the x readout direction decreased more than 50 % it in the y readout direction. Figure 4 showed the wave images from one of three volunteers in the supraspinatus muscle. The wave images in the x readout direction and in the y readout direction are showed Fig. 4a and 4b, respectively. These images were magnitude images overlaid with the wave image. In the case of the x readout direction, the wave image represented unclear wave propagation in the supraspinatus muscle, and the wavelength cannot be measure. In the case of the y readout direction, the wave image represented clear wave propagation along the orientation of the supraspinatus muscle, and the wavelength can be measure. The mean stiffness value of the supraspinatus muscle in three volunteers was 10.3 ± 3.14 (mean ± SD) kpa in the y readout direction. Fig. 5 showed the movie of wave image and magnitude fusion images in the supraspinatus muscle. Page 7 of 13
8 Images for this section: Fig. 3: Mean relative (MAV normalized with MAV in the y-direction) in three volunteers vs. the readout gradient direction (x or y). The mean relative MAV in x-direction decreased more than 50% compared with it in y-direction. Bars show standard deviations. - Tokyo/JP Page 8 of 13
9 Fig. 4: Each image was made by fusion of the wave image with the magnitude image. The Green arrows indicate the readout gradient direction. - Tokyo/JP Fig. 5: Movie of wave image and magnitude fusion images in the supraspinatus muscle. - Tokyo/JP Page 9 of 13
10 Conclusion The results demonstrate that MRE is applicable to the supraspinatus muscle by using this MRE technique. This MRE technique successfully represented clear wave propagation along the orientation of the supraspinatus muscle in the y readout direction (Fig. 4b). In the case of the y readout direction, the readout gradient is sensitized the perpendicular wave displacement to the orientation of the supraspinatus muscle. In addition, Fig. 3 demonstrates that the wave displacement was occurring mainly perpendicular direction to the orientation of the supraspinatus muscle. Previous studies (4) have demonstrated the wave propagation follows the muscle fibers. Morphologically, the supraspinatus muscle is one of the uni-circumpennate muscles and is formed that the arraying direction of the muscle fibers is diagonal to the orientation of the supraspinatus muscle. Fig. 6 showed schematic illustrations of the fusiform muscle and the uni-circumpennate muscle (supraspinatus muscle). In the proximal side of the supraspinatus muscle, the fiber orientation of the supraspinatus muscle is close parallel and is similar to the fusiform muscle. Therefore, in the proximal side of the supraspinatus muscle, it is assumed that the wave propagated along the orientation of the supraspinatus muscle as if the supraspinatus muscle is one of the fusiform muscles. The fusiform muscles may be easy to measure the stiffness compared to uni-circumpennate muscles, because the fiber orientation of the fusiform muscle is a simple structure. In this MRE technique, it is recommended that the stiffness of the supraspinatus muscle is measured in the proximal side of the supraspinatus muscle with the y readout direction. Page 10 of 13
11 Images for this section: Fig. 6: a: Schematic illustration of the the fusiform muscle. b: Schematic illustration of the uni-circumpennate muscle (supraspinatus muscle) - Tokyo/JP Page 11 of 13
12 Personal information Daiki ITO, R.T. Graduate Student Dept. of Radiological Sciences Graduate School of Human Health Sciences Tokyo Metropolitan University , Higashiogu, Arakawa-ku, Tokyo Japan D. ITO, T.NUMANO, T.ONISHI Tokyo Metropolitan University K.MIZUHARA Tokyo Denki University K.TAKAMOTO, H.NISHIJYOU Toyama University Page 12 of 13
13 References 1. Muthupillai R, Lomas DJ, Rossman PJ, et al. Magnetic resonance elastography by direct visualization of propagating acoustic strain waves. Science 1995; 269: Yanagisawa O, Niitsu M, Takahashi Y, et al. Magnetic resonance imaging of the rotator cuff muscles after baseball pitching. J Sports Med Phys Fitness 2003; 43: Numano T, Kawabata Y, Mizuhara K, et al. A simple method for MR elastography: a gradient-echo type multi-echo sequence. Magn Reson Imaging 2015; 33: Debernard L, Robert L, Charleux F, et al. Characterization of muscle architecture in children and adults using magnetic resonance elastography and ultrasound techniques. J Biomech 2011; 44: Page 13 of 13
Simultaneous Acquisition of MR Elastography and Twopoint Dixon Imaging
Simultaneous Acquisition of MR Elastography and Twopoint Dixon Imaging Award: Radiographer Award Poster No.: C-0409 Congress: ECR 2018 Type: Scientific Exhibit Authors: T. Numano, D. Ito, K. Takamoto,
More informationShear Wave Elastography in diagnostics of supraspinatus tendon.
Shear Wave Elastography in diagnostics of supraspinatus tendon. Poster No.: C-2168 Congress: ECR 2013 Type: Authors: Keywords: DOI: Scientific Exhibit V. Saltykova; Moscow/RU Musculoskeletal joint, Musculoskeletal
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 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 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 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 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 informationMRI of scapholunate ligament- comparison between direct MR arthrography and non-contrast examination with highresolution
MRI of scapholunate ligament- comparison between direct MR arthrography and non-contrast examination with highresolution microscopy coil Poster No.: P-0115 Congress: ESSR 2015 Type: Authors: Keywords:
More informationValue of shear wave ultrasound elastography in the myofascial pain syndrome diagnosis in sportsmen
Value of shear wave ultrasound elastography in the myofascial pain syndrome diagnosis in sportsmen Poster No.: C-1202 Congress: ECR 2014 Type: Authors: Keywords: DOI: Scientific Exhibit V. Saltykova; Moscow/RU
More informationUozu city/jp, Minatoku, Tokyo/JP Bones, Extremities, CT, Surgery, Physics, Artifacts, Image verification /ecr2014/C-0462
Metal Artifact Reduction Algorithm enablesreduce metal artifacts and improvement of diagnosis in the postoperative Pedicle screws implant for Spinal Fusion: A Phantom Study Poster No.: C-0462 Congress:
More informationMagic angle artifact in MRI of the patellar ligament: preliminary comparison between conventional and weightbearing
Magic angle artifact in MRI of the patellar ligament: preliminary comparison between conventional and weightbearing MRI Poster No.: C-1017 Congress: ECR 2012 Type: Scientific Exhibit Authors: R. Piccazzo
More informationCierny-Mader classification of chronic osteomyelitis: Preoperative evaluation with cross-sectional imaging
Cierny-Mader classification of chronic osteomyelitis: Preoperative evaluation with cross-sectional imaging Poster No.: C-590 Congress: ECR 2009 Type: Topic: Educational Exhibit Musculoskeletal Authors:
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 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 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 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 informationRadiological features of Legionella Pneumophila Pneumonia
Radiological features of Legionella Pneumophila Pneumonia Poster No.: E-0048 Congress: ESTI 2012 Type: Scientific Exhibit Authors: M. Vinciguerra, L. Stefanetti, E. Teti, G. Argentieri, L. G. 1 1 1 1 1
More informationSonographically occult intrasubstance tendon tears revealed by platelet rich plasma injection: evidence of a frequently overlooked pathology?
Sonographically occult intrasubstance tendon tears revealed by platelet rich plasma injection: evidence of a frequently overlooked pathology? Poster No.: C-1603 Congress: ECR 2013 Type: Scientific Exhibit
More informationShear-wave sonoelastography evaluation of Achilles tendons after surgery
Shear-wave sonoelastography evaluation of Achilles tendons after surgery Poster No.: C-1507 Congress: ECR 2012 Type: Authors: Keywords: DOI: Scientific Paper G. Ivanac, D. Lemac, M. Cavka, B. Brkljacic;
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 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 informationInfluence of pulsed fluoroscopy and special radiation risk training on the radiation dose in pneumatic reduction of ileocoecal intussusceptions.
Influence of pulsed fluoroscopy and special radiation risk training on the radiation dose in pneumatic reduction of ileocoecal intussusceptions. Poster No.: C-0599 Congress: ECR 2013 Type: Authors: Keywords:
More informationScientific Exhibit Authors: V. Moustakas, E. Karallas, K. Koutsopoulos ; Rodos/GR, 2
Diagnosis of Acute Appendicitis: the role of Color Doppler Ultrasound as first-line imaging method and evaluation of the higher diagnostic performances of CT against its disadvantages. Poster No.: C-0708
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 informationCognitive target MRI-TRUS fusion biopsies of MRI detected PIRADS 4 and 5 lesions
Cognitive target MRI-TRUS fusion biopsies of MRI detected PIRADS 4 and 5 lesions Poster No.: B-0704 Congress: ECR 2015 Type: Scientific Paper Authors: P. P. van Westerveld, J. Vriesema, J. H. W. van den
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 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 informationBolus administration of esmolol allows for safe and effective heart rate control during coronary computed tomography angiography
Bolus administration of esmolol allows for safe and effective heart rate control during coronary computed tomography angiography Poster No.: C-1342 Congress: ECR 2013 Type: Scientific Exhibit Authors:
More informationRole of positron emission mammography (PEM) for assessment of axillary lymph node status in patients with breast cancer
Role of positron emission mammography (PEM) for assessment of axillary lymph node status in patients with breast cancer Poster No.: C-1260 Congress: ECR 2011 Type: Scientific Paper Authors: K. M. Kulkarni,
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 informationCavitary lung lesion: Two different diagnosis with similar appearence
Cavitary lung lesion: Two different diagnosis with similar appearence Poster No.: P-0043 Congress: ESTI 2015 Type: Educational Poster Authors: M. Yesildag, H. Kalkan, K. Ödev; Konya/TR Keywords: Infection,
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 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 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 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 informationStandardizing mammographic breast compression: Pressure rather than force?
Standardizing mammographic breast compression: Pressure rather than force? Poster No.: C-2383 Congress: ECR 2012 Type: Authors: Scientific Paper J. E. de Groot 1, W. Branderhorst 1, M. Broeders 2, G. J.
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 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 informationBI-RADS 3, 4 and 5 lesions on US: Five categories and their diagnostic efficacy and pitfalls in interpretation
BI-RADS 3, 4 and 5 lesions on US: Five categories and their diagnostic efficacy and pitfalls in interpretation e-poster: C-118 Congress: ECR 2008 Type: Educational Exhibit Topic: Breast / Ultrasound Authors:
More informationUltrasonographic evaluation of patellar deviation and its influence on knee muscles and tendons
Ultrasonographic evaluation of patellar deviation and its influence on knee muscles and tendons Poster No.: C-0984 Congress: ECR 2015 Type: Authors: Keywords: DOI: Scientific Exhibit R. A. M. Santos, A.
More informationHow variable is aortic strain measurement using magnetic resonance imaging?
How variable is aortic strain measurement using magnetic resonance imaging? Poster No.: C-1057 Congress: ECR 2015 Type: Scientific Exhibit Authors: M. Hrabak Paar, J. Bremerich, A. Redheuil, T. Heye ;
More informationTargeted MRI/TRUS fusion-guided biopsy in men with previous negative prostate biopsies: initial experience.
Targeted MRI/TRUS fusion-guided biopsy in men with previous negative prostate biopsies: initial experience. Poster No.: C-0382 Congress: ECR 2016 Type: Scientific Exhibit Authors: A. I. Gromov 1, V. V.
More informationIntratendinous tears of the Achilles tendon - a new pathology? Analysis of a large 4 year cohort.
Intratendinous tears of the Achilles tendon - a new pathology? Analysis of a large 4 year cohort. Poster No.: C-1680 Congress: ECR 2014 Type: Scientific Exhibit Authors: S. Morton, T. Parkes, O. Chan,
More informationMRI evaluation of TMJ condylar angulations
MRI evaluation of TMJ condylar angulations Poster No.: C-2272 Congress: ECR 2010 Type: Topic: Authors: Keywords: DOI: Scientific Exhibit Musculoskeletal M. Pregarz 1, C. Bodin 2 ; 1 Peschiera del Garda/IT,
More informationHow to plan a Zenith AAA stent-graft from a CTA: Basic measurements and concepts explained
How to plan a Zenith AAA stent-graft from a CTA: Basic measurements and concepts explained Poster No.: C-3077 Congress: ECR 2010 Type: Educational Exhibit Topic: Vascular Authors: D. V. Thomas; Northampton/UK
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 informationInfluence of upper airways section area on oxygen blood saturation level in patients with obesity and sleep apnea syndrome
Influence of upper airways section area on oxygen blood saturation level in patients with obesity and sleep apnea syndrome Poster No.: P-0028 Congress: ESCR 2015 Type: Scientific Poster Authors: E. Butorova,
More informationCharacterisation of cervical lymph nodes by US and PET-CT
Characterisation of cervical lymph nodes by US and PET-CT Poster No.: C-1807 Congress: ECR 2010 Type: Educational Exhibit Topic: Head and Neck Authors: J. I. Garcia Gomez; Mexico City/MX Keywords: cervical
More informationComputed tomographic dacryocystography as compared with X-ray dacryocystography in patients with dacryostenosis
Computed tomographic dacryocystography as compared with X-ray dacryocystography in patients with dacryostenosis Poster No.: C-1887 Congress: ECR 2016 Type: Authors: Keywords: DOI: Educational Exhibit M.
More informationClinically applicable objective diagnosis of Ménière's disease by MR: How "to do" it
Clinically applicable objective diagnosis of Ménière's disease by MR: How "to do" it Poster No.: C-0488 Congress: ECR 2013 Type: Authors: Keywords: DOI: Educational Exhibit S. Naganawa, M. Yamazaki, H.
More informationThe Role of Radionuclide Lymphoscintigraphy in the Diagnosis of Lymphedema of the Extremities
The Role of Radionuclide Lymphoscintigraphy in the Diagnosis of Lymphedema of the Extremities Poster No.: C-1229 Congress: ECR 2014 Type: Authors: Keywords: DOI: Scientific Exhibit M. Osher 1, A. Pallas
More informationFDG-18 PET/CT - radiation dose and dose-reduction strategy
FDG-18 PET/CT - radiation dose and dose-reduction strategy Poster No.: C-1856 Congress: ECR 2014 Type: Authors: Keywords: DOI: Scientific Exhibit P. Nicholson, S. McSweeney, K. O'Regan; Cork/IE Radiation
More informationPurpose. Methods and Materials. Results
Prevalence and significance of hypoattenuating hepatic lesions deemed too small to characterise: How are we following up these lesions and what are the outcomes? Poster No.: C-014 Congress: ECR 2009 Type:
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 informationHigh-resolution ultrasound of the elbow - didactic approach.
High-resolution ultrasound of the elbow - didactic approach. Poster No.: C-2358 Congress: ECR 2014 Type: Educational Exhibit Authors: C. M. Olchowy, M. Lasecki, U. Zaleska-Dorobisz; Wroclaw/PL Keywords:
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 informationDiffuse high-attenuation within mediastinal lymph nodes on non-enhanced CT scan: Usefulness in the prediction of benignancy
Diffuse high-attenuation within mediastinal lymph nodes on non-enhanced CT scan: Usefulness in the prediction of benignancy Poster No.: C-1785 Congress: ECR 2012 Type: Authors: Keywords: DOI: Scientific
More informationScientific Exhibit. Authors: D. Takenaka, Y. Ohno, Y. Onishi, K. Matsumoto, T.
The feasibility of biphasic contrast-media-injection-protocol for chest imaging on 320-slice volume MDCT: Direct comparison of biphasic and bolus contrast-media injection protocols on 320-slice volume
More informationHigh frequency US of the temporomandibualar joint (TMJ) - practical guide
High frequency US of the temporomandibualar joint (TMJ) - practical guide Poster No.: C-2352 Congress: ECR 2014 Type: Educational Exhibit Authors: M. Lasecki, C. M. Olchowy, K. Kaczorowski, J. S#onina,
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 informationBasal ganglia and thalamus in Parkinson disease: structural and connectivity associated changes
Basal ganglia and thalamus in Parkinson disease: structural and connectivity associated changes Poster No.: C-0851 Congress: ECR 2014 Type: Authors: Keywords: DOI: Scientific Exhibit M. Onu, L. Badea,
More informationCategorical Classification of Spiculated Mass on Breast MRI
Categorical Classification of Spiculated Mass on Breast MRI Poster No.: C-1974 Congress: ECR 2013 Type: Authors: Scientific Exhibit Y. Kanda 1, S. Kanao 2, M. Kataoka 2, K. Togashi 2 ; 1 Kyoto City/JP,
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 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 informationShear Wave Elastography In Characterization Of Liver Tumours
Shear Wave Elastography In Characterization Of Liver Tumours Poster No.: C-1921 Congress: ECR 2014 Type: Scientific Exhibit Authors: K. L. Choong 1, B. J. J. Abdullah 1, G. Kumar 2, C. H. Yeong 1, K. L.
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 informationUS-guided steroid and hyaluronic acid infiltration for the treatment of hand and wrist tenosynovitis: Preliminary experience
US-guided steroid and hyaluronic acid infiltration for the treatment of hand and wrist tenosynovitis: Preliminary experience Poster No.: C-2342 Congress: ECR 2010 Type: Scientific Exhibit Topic: Musculoskeletal
More informationAdded value of MR myelography using 3D COSMIC sequence in the diagnosis of lumbar canal stenosis: comparison with routine MR imaging
Added value of MR myelography using 3D COSMIC sequence in the diagnosis of lumbar canal stenosis: comparison with routine MR imaging Poster No.: C-1099 Congress: ECR 2012 Type: Authors: Scientific Exhibit
More informationThe "whirl sign". Diagnostic accuracy for intestinal volvulus.
The "whirl sign". Diagnostic accuracy for intestinal volvulus. Poster No.: C-0670 Congress: ECR 2014 Type: Scientific Exhibit Authors: M. Pire, M. Marti, A. Borobia, A. Verón; Madrid/ES Keywords: Abdomen,
More informationScientific Exhibit Authors: M. Sugiyama, Y. Takehara, T. Saito, N. Ooishi, M. Alley,
Abnormal flow dynamics within the ascending aorta of the patients with aortic valve stenosis. Assessments with phase resolved three dimensional phase contrast MR image (4DFlow). Poster No.: C-2504 Congress:
More informationComparison between different software programs and techniques for liver iron concentration assessment with MRI in thalassemic patients
Comparison between different software programs and techniques for liver iron concentration assessment with MRI in thalassemic patients Poster No.: C-1580 Congress: ECR 2015 Type: Scientific Exhibit Authors:
More informationKnee ultrasound in pediatric patients - anatomy, diagnostic pitfalls, common pathologies.
Knee ultrasound in pediatric patients - anatomy, diagnostic pitfalls, common pathologies. Poster No.: C-2434 Congress: ECR 2015 Type: Educational Exhibit Authors: C. M. Olchowy, M. Lasecki, M. Inglot,
More informationEvaluation of anal canal morphology with MRI in cases with anal fissure
Evaluation of anal canal morphology with MRI in cases with anal fissure Poster No.: C-1670 Congress: ECR 2015 Type: Scientific Exhibit Authors: A. Erden, E. Peker, Z. B#y#kl# Gençtürk, I. Erden; Ankara/TR
More informationMR measurements of subcoracoid impingement using a new method and its relationship to rotator cuff pathology at MR arthrography
MR measurements of subcoracoid impingement using a new method and its relationship to rotator cuff pathology at MR arthrography Poster No.: P-0055 Congress: ESSR 2014 Type: Authors: Keywords: DOI: Scientific
More informationMR-guided prostatic biopsy at 3T: the role of PI-RADS-score: a histopahologic-radiologic correlation
MR-guided prostatic biopsy at 3T: the role of PI-RADS-score: a histopahologic-radiologic correlation Poster No.: B-0969 Congress: ECR 2015 Type: Scientific Paper Authors: A. Malich; Nordhausen/DE Keywords:
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 informationMR imaging findings of extranodal-skeletal muscle lymphoma
R imaging findings of extranodal-skeletal muscle lymphoma Poster No.: C-0261 Congress: ECR 2013 Type: Scientific Exhibit Authors: C. A. Kadioglu, S. Keskin,. A. Yinanc, O. Ertunç; Ankara/TR Keywords: usculoskeletal
More informationMRI in Patients with Forefoot Pain Involving the Metatarsal Region
MRI in Patients with Forefoot Pain Involving the Metatarsal Region Poster No.: C-0151 Congress: ECR 2015 Type: Authors: Keywords: DOI: Scientific Exhibit R. Vukojevi#, M. Mustapic, D. Marjan; Zagreb/HR
More informationLong bones manifestations of congenital syphilis
Long bones manifestations of congenital syphilis Poster No.: C-0139 Congress: ECR 2011 Type: Educational Exhibit Authors: T. F. de Souza 1, P. P. Collier 1, E. J. M. Bronzatto 1, G. L. P. Keywords: DOI:
More informationUS guided treatment in calcific tendinopathy of body tendons: Techniques and follow-up
US guided treatment in calcific tendinopathy of body tendons: Techniques and follow-up Poster No.: C-2369 Congress: ECR 2010 Type: Scientific Exhibit Topic: Musculoskeletal - Soft Tissue Authors: T. De
More informationComparison of radiation doses of various approaches of MR arthrograms with fluoroscopic guided contrast injection
Comparison of radiation doses of various approaches of MR arthrograms with fluoroscopic guided contrast injection Poster No.: C-1294 Congress: ECR 2014 Type: Scientific Exhibit Authors: H. M. Cheng, C.
More informationPostmortem Computed Tomography Finding of Lungs in Sudden Infant Death.
Postmortem Computed Tomography Finding of Lungs in Sudden Infant Death. Poster No.: C-1147 Congress: ECR 2013 Type: Educational Exhibit Authors: Y. Kawasumi, A. Usui, Y. Hosokai, M. Sato, A. Nakajima,
More informationMultislice CT versus cone beam CT: dosimetric and image quality comparision.
Multislice CT versus cone beam CT: dosimetric and image quality comparision. Poster No.: C-2589 Congress: ECR 2015 Type: Authors: Scientific Exhibit C. Dionisi 1, A. Crispo 2, E. Stefani 3, A. Lovaglio
More informationPelvic static MR vs MR-defecography in the study of woman's pelvic floor disorders
Pelvic static MR vs MR-defecography in the study of woman's pelvic floor disorders Poster No.: B-0043 Congress: ECR 2015 Type: Scientific Paper Authors: A. ambrosi, G. De Franco, F. Lorusso, M. Cascarano,
More informationStrain histogram analysis for elastography in breast cancer diagnosis
Strain histogram analysis for elastography in breast cancer diagnosis Poster No.: C-1854 Congress: ECR 2015 Type: Scientific Exhibit Authors: J. F. Carlsen, C. Ewertsen, S. Sletting, M. B. Nielsen; Copenhagen/DK
More informationPsoriatic arthritis: early ultrasound findings
Psoriatic arthritis: early ultrasound findings Poster No.: C-0399 Congress: ECR 2014 Type: Educational Exhibit Authors: R. Persechino 1, L. Cristiano 1, A. Bartoloni 1, C. Cantone 2, A. Keywords: DOI:
More informationCT Evaluation of Patellar Instability
CT Evaluation of Patellar Instability Poster No.: C-2157 Congress: ECR 2014 Type: Educational Exhibit Authors: R. Ruef, C. Edgar, C. Lebedis, A. Guermazi, A. Kompel, A. Murakami; Boston, MA/US Keywords:
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 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 informationPulmonary changes induced by radiotherapy. HRCT findings
Pulmonary changes induced by radiotherapy. HRCT findings Poster No.: C-2299 Congress: ECR 2015 Type: Educational Exhibit Authors: R. E. Correa Soto, M. Albert Antequera, K. Müller Campos, D. 1 2 4 3 1
More informationTrabecular bone analysis with tomosynthesis in diabetic patients: comparison with CT-based finite-element method
Trabecular bone analysis with tomosynthesis in diabetic patients: comparison with CT-based finite-element method Poster No.: C-1789 Congress: ECR 2015 Type: Scientific Exhibit Authors: M. Fujii, T. Aoki,
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 informationScientific Exhibit Authors:
Clinical Audit on Optimization of Radiation Dose from MDCT: Effect on Diagnostic Reference Levels for Brain, Sinus, Cervical Spine, Chest, Abdomen-Pelvis, and Lumbar Spine Examinations and on Nationwide
More informationPopliteal pterygium syndrome
Popliteal pterygium syndrome Poster No.: C-1816 Congress: ECR 2011 Type: Educational Exhibit Authors: L. B. S. Santos, J. L. D. O. Schiavon, O. O. Guimaraes Neto, 1 1 2 3 1 1 C. A. P. Braga, R. S. LEMOS,
More informationThe imaging evaluation of breast implants
The imaging evaluation of breast implants Poster No.: C-0654 Congress: ECR 2014 Type: Authors: Keywords: DOI: Educational Exhibit N. Rotaru; Chisinau/MD Neoplasia, Education and training, Cancer, Imaging
More informationComputed tomography for the detection of thumb base osteoarthritis, comparison with digital radiography.
Computed tomography for the detection of thumb base osteoarthritis, comparison with digital radiography. Poster No.: C-1981 Congress: ECR 2012 Type: Scientific Exhibit Authors: M. S. Saltzherr, J. W. van
More informationHRUS in the evaluation of the nails in patients with Psoriasis.
HRUS in the evaluation of the nails in patients with Psoriasis. Poster No.: C-0512 Congress: ECR 2017 Type: Scientific Exhibit Authors: I. Mussetto, N. Romano, A. Fischetti, M. Burlando, A. Muda; Genova/IT
More informationSuperior Labrum Anterior Posterior lesions: ultrasound evaluation
Superior Labrum Anterior Posterior lesions: ultrasound evaluation Poster No.: C-0472 Congress: ECR 2017 Type: Scientific Exhibit Authors: D. Belyaev; Yaroslavl/RU Keywords: Trauma, Arthrography, Ultrasound,
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 informationMarked changes in intervertebral disc morphology in ochronosis of alkaptonuria (AKU): a quantitative analysis of lumbar spine MR images
Marked changes in intervertebral disc morphology in ochronosis of alkaptonuria (AKU): a quantitative analysis of lumbar spine MR images Poster No.: C-2314 Congress: ECR 2011 Type: Authors: Keywords: DOI:
More information