Sanja Ognjenovic A PROJECT. submitted to. Oregon State University. University Honors College
|
|
- Gillian Thompson
- 5 years ago
- Views:
Transcription
1 Volumetric-modulated arc radiotherapy for pancreatic malignancies: Dosimetric comparison with helical TomoTherapy By Sanja Ognjenovic A PROJECT submitted to Oregon State University University Honors College in partial fulfillment of the requirements for the degree of Honors Baccalaureate of Science in Microbiology (Honors Scholar) Presented May 13, 2015 Commencement June 2015
2
3 AN ABSTRACT OF THE THESIS OF Sanja Ognjenovic for the degree of Honors Baccalaureate of Science in Microbiology presented on May Title: Volumetric-modulated arc radiotherapy for pancreatic malignancies: Dosimetric comparison with helical TomoTherapy. Abstract approved: Krystina Tack Purpose: To compare target dose conformality and OAR sparing afforded by VMAT and HT for pancreatic cancer. Materials and Methods: A retrospective planning study was performed in 18 patients. Total treatment dose was 59.4Gy. OAR and PTV mean doses, conformity indices, isodose volumes, and integral doses were compared. The relationship between tumor volume, patient circumference, and these variables was also evaluated. Results: Mean doses to the left kidney (p<.001), right kidney (p<.001), and liver (p<.001) were smaller with VMAT. The mean dose to the PTV was smaller with HT (p=.002). The large field VMAT resulted in a smaller CI percent deviation from 1.0 (p=.025). There was no significant difference for the boost plan (p=.092). Integral dose was significantly lower with VMAT (p<.001). Integral dose was lower for smaller tumor volumes and patent circumferences with both techniques. Conclusion: There appears to be an advantage in using VMAT over HT in reducing radiation doses to the liver and kidneys, in obtaining tighter isodose volumes, and in obtaining a lower integral dose. VMAT may provide superior conformity indices for larger doses, but the techniques are comparable for low doses. Smaller tumor volume and patient circumference result in lower integral doses with both techniques. Key Words: pancreatic malignancy, VMAT, HT, integral dose Corresponding address: ognjenos@onid.orst.edu
4 Copyright by Sanja Ognjenovic May All Rights Reserved
5 Volumetric-modulated arc radiotherapy for pancreatic malignancies: Dosimetric comparison with helical TomoTherapy by Sanja Ognjenovic A PROJECT submitted to Oregon State University University Honors College in partial fulfillment of the requirements for the degree of Honors Baccalaureate of Science in Microbiology (Honors Scholar) Presented May 13, 2015 Commencement June 2015
6 Honors Baccalaureate of Science in Microbiology project of Sanja Ognjenovic presented on May 13, APPROVED: Krystina Tack, Mentor, representing OSU Nuclear Engineering and Radiation Health Physics James Tanyi, Committee Member, representing OHSU Department of Radiation Medicine Alena Paulenova, Committee Member, representing OSU Nuclear Engineering and Radiation Health Physics Toni Doolen, Dean, University Honors College I understand that my project will become part of the permanent collection of Oregon State University, University Honors College. My signature below authorizes release of my project to any reader upon request. Sanja Ognjenovic, Author
7
8 Table of Contents Introduction... 1 Materials and Methods... 1 Patients... 1 Treatment Planning... 2 Comparison of Techniques... 2 Results... 3 Discussion... 3 Conclusions... 4 Limitations... 4 References... 5 Appendix... 7 Table Table Table Table
9 Introduction Pancreatic cancer treatment is commonly a tri-modality approach of chemotherapy, radiation therapy, and surgical resection. As the tumor is close to normal tissue and critical organs toxicity is a primary concern. Treatment with traditional radiotherapy techniques such as 3D-CRT can result in toxicity to critical organs such as the liver, stomach, small bowel, and kidneys. 1 Intensity-modulated radiotherapy (IMRT) has been shown to improve target dose conformality and reduce toxicity when compared to 3D-CRT. 2-5 The availability of even more refined radiation therapy techniques such as RapidArc (RA) and Helical TomoTherapy (HT) presents new opportunities to study dose conformality and sparing of these critical structures. RapidArc is a form of volumetric-modulated arc therapy (VMAT) in which the radiation dose is delivered through one or more dynamically modulated arcs. During treatment planning, the dose optimization algorithm simultaneously modulates the rotation speed of the gantry, the shape of the multi-leaf collimator (MLC) aperture, and the delivery dose rate allowing for shorter treatment times, improved conformality, and the delivery of fewer monitor units. 6-8 Helical TomoTherapy (HT) is an arc-based approach to IMRT in which the radiation dose is delivered slice by slice as opposed to the entire volume being irradiated at once. During HT the gantry rotates at a constant speed while the shape of the binary MLC aperture changes and the patient table moves in and out of the beam aperture. When compared with traditional IMRT techniques HT has been shown to reduce radiation doses to organs at risk thereby reducing gastrointestinal toxicity There are currently only a few analyses comparing these two techniques. Cao et al. and Fogliata et al. both compared VMAT and HT for the treatment of intracranial tumors. Cao et al. concluded that the techniques are generally comparable, but HT can provide superior results for more complex cases. 11 Fogliata et al. also concluded that the techniques are comparable in terms of conformality and organ sparing, but reported that more complex studies need to be done. Our goal was to dosimetrically compare target dose conformality and organ-at-risk sparing afforded by VMAT and HT in the treatment of pancreatic tumors. 12 We also sought to evaluate if tumor volume or patient circumference affects treatment quality for either technique. Materials and Methods Patients A retrospective planning study was performed on eighteen patients with advanced pancreatic cancer with and without previous resection. Data collection and analysis was approved by the Institutional Review Board of the Knight Cancer Institute at the Oregon Health and Science University. During treatment patients were immobilized using the BodyFix wholebody double vacuum immobilization system (Medical Intelligence, Schwabmuenchen, Germany) without diaphragmatic control and with abdominal compression. 13 All patients underwent a freebreathing computed tomography (CT) scan as well as a free-breathing respiratory-correlated, four-dimensional CT (4DCT) on a 16-slice helical big-bore simulator (Philips Medical Systems, Cleveland, OH) in the supine position. 1
10 Treatment Planning The 4DCT scans were reconstructed in 10 equally spaced time bins of 3mm slice thickness using respiratory phase binning. The 4D maximum intensity projection data set (MIP), the free breathing CT, and the average intensity projection CT were all exported to Eclipse v (Varian Medical Systems, Palo Alto, CA) for target and OAR segmentation. Using the MIP, free breathing CT, and the 10 respiratory phases of the 4DCT an internal target volume (ITV) was created. The ITV was expanded by a 5mm margin to create the planning target volume (PTV). Organs at risk such as the spinal cord, kidneys, liver, stomach, and bowel were contoured on the average intensity projection CT. The average-intensity projection CT was also used for dose calculation. Individual isodose constraints were placed to ensure that the maximal tolerated doses to the OARs per published Quantitative Analysis of Normal Tissue Effects in the Clinic guidelines were not exceeded 14.Plans were created so that the prescribed dose of 45Gy encompassed at least 95% of the PTV (tissue heterogeneity was accounted for). A boost plan was created on a new planning CT resulting in a cumulative dose of 59.4 Gy. All VMAT plans were created using 10MV photons and delivered on a Varian Clinac that is equipped with a 120-leaf Millennium multileaf collimator system, with forty 5-mm central leaf-pairs and twenty 10-mm peripheral leaf-pairs. VMAT plans were generated with two simultaneously optimized coplanar volumetric arcs with the same isocenter and with 360 rotation. HT plans were generated using the Hi-Art Helical Tomotherapy inverse planning software. Tomotherapy plans were designed to match the isodose constraints used on VMAT planning. Comparison of Techniques The CT data sets with contours and isodose lines were transferred to VelocityAl (Velocity Medical Solutions, Atlanta, Georgia) to generate the cumulative dose from the original plan and the boost plan. This was done through deformable registration, an optimization process that correlates anatomical features observed in two different images of the same patient and ROI. Once an optimal match is found between the input images (original and boost plan CTs) the system is able to provide a cumulative dose. 13. Cumulative dose volume histograms (cdvh) were obtained for the PTV and OARs for all patients. The following parameters were calculated for all patients and compared: Dmean (mean dose) and D95% (the dose received by 95% of the PTV) for the PTV, Dmean and V30 (the volume receiving more than 30Gy) for the liver, Dmean, V15 and V20 (volume receiving more than 15Gy and 20Gy, respectively) for the kidneys, and Dmax (maximum dose) for the spinal cord. No cdvhs were obtained for the stomach or the small bowel. Expanding the GTV to the PTV incorporates the dose to the small bowel so it is unnecessary to report this as a separate result. The conformity indices of the plans, as well as the volumes of the 25%, 50%, 90%, and 100% isodose lines, were also calculated. The conformity index of the plans was defined as the ratio between the volume of the 100% isodose line and the PTV volume. Conformity indices were compared by calculating their percent deviation from 1.0, as a value of 1.0 is ideal. The volumes encompassed by the isodose lines were obtained using the VelocityAl system. We also calculated the overall integral dose delivered to the patient. The integral dose was defined as the mean dose delivered to the total body minus the PTV 12,15,16. Additionally, all 18 patients were sorted into three groups based on tumor volume. The first group averaged a tumor volume of 438.0cm 3, the second group cm 3, and the third group cm 3. Dmean for the left kidney, right kidney, and liver as well as Dmax for the spine, integral dose, and CI deviation from 1.0 for both original 2
11 and boost plans were compared between tumor volume groups. Lastly, we compared the effect patient circumference had on these variables by sorting the patients into two groups based on their circumference. Circumference was estimated by calculating the circumferential length around the body at isocenter. The first group averaged a circumference of 295cm and the second group averaged 541cm. All statistical analyses were performed using a paired, two-sided Student s t-test with a significance level of p < Results Table 1 summarizes and compares the mean doses to the defined organs at risk for the two treatment techniques. Mean doses were lower with VMAT plans than HT plans for the left kidney (15.6 vs. 28.5, p<.001), the right kidney (15.0 vs. 27.4, p<.001), and the liver (13.0 vs. 28.8, p<.001). Maximum doses to the spinal cord were statistically insignificant (VMAT=35.1, HT=39.4, p=.053). The mean dose to the PTV was lower with the HT plans (55.6 vs. 60.9, p=.002). D95% was statistically insignificant (VMAT=56.6, HT=51.1, p=.826). Table 2 summarizes and compares the conformity indices as well as the volumes of the 25%, 50%, 90%, and 100% isodose lines. For the large field plan VMAT produced a smaller CI percent deviation from 1.0 (4.5% vs. 7.5%, p=.025). However, for the boost plan there was no significant difference in CI deviation (VMAT=4.2%, HT=10.4%, p=.092). For the 25%, 50%, 90%, and 100% large field isodose lines the HT plans had significantly larger volumes than the VMAT plans (p<.001 for 25%, 90%, 100%, p=.021 for 50%). The same trend was observed for the boost plan 25%, 50%, and 90% isodose volumes (p<.001 for 25%, 50%, p=.001 for 90%). There was no significant difference in the 100% boost plan isodose volumes (p=.145). Integral dose was significantly lower with the VMAT plans than with the HT plans (p<.001). Table 3 compares tumor volume and Dmean for the left kidney, right kidney, and liver, Dmax for the spine, integral dose, and CI deviation from 1.0 for both original and boost plans. There were no significant trends between tumor volume and any of these variables, except integral dose. Smaller tumor volumes resulted in significantly lower integral doses with both VMAT (G1-G2 P=.001, G1-G3 P<.001, G2-G3, P=.005) and HT (G1-G2 P=.002, G1-G3 P<.001, G2-G3, P=.012). Table 4 compares the same variables, but with patient circumference. Similarly, there was only a significant trend between patient circumference and integral dose. Patients with a smaller circumference had significantly lower integral dose delivery with both VMAT (P=.002) and HT (P=.009). Discussion In this study we dosimetrically compared target dose conformality and organ-at-risk sparing afforded by VMAT and HT for the treatment of pancreatic cancer. Our results indicate that double-arc 10MV VMAT plans may provide superior sparing of the kidneys and liver when compared with HT plans. Our results also indicate that VMAT may provide tighter isodose volumes for 25%, 50%, 90% and 100% isodose lines. To make a conclusion about conformity indices more research needs to be done. Our results suggest that VMAT may provide superior conformity indices for larger doses, but that for lower doses the treatment techniques may provide comparable results. Our results also indicate that VMAT provides significantly lower integral doses than HT. There appears to be no relationship between tumor volume or patient circumference and dose conformality or sparing of organs at risk for either of these two 3
12 techniques. Only integral dose is affected. Smaller tumor volumes and patient circumferences appear to result in lower integral dose delivery for both VMAT and HT. Cai et al. conducted a similar pancreatic study and found that single-arc 6MV and 15MV VMAT plans provide statistically comparable conformity indices when compared to HT plans for radiation doses of 50Gy. 17 The study by Cai et al. also found that there were small but significant decreases in the mean dose to the bowel, duodenum, kidneys, and liver with the VMAT plans. Pasquier et al. studied the treatment of prostate cancer with whole pelvic radiation therapy (WPRT) using VMAT and HT for radiation doses of 46Gy and 76Gy. 18 That study found that at high doses VMAT better spared the rectal wall, but HT better spared the bladder wall. No significant differences in mean dose to the rectal wall, bladder wall, or small bowel were found between the two techniques at the lower dose. Pasquier et al. also found that the integral dose was significantly lower with VMAT, as did Oliver et al 19. There are no published works evaluating the effects of either tumor volume or patient circumference on the effectiveness of these techniques. Conclusions Both VMAT and HT can deliver conformal dose distributions while limiting the dose to normal tissues regardless of tumor volume or patient circumference. There may be an advantage in using VMAT over HT in the reduction of radiation doses to certain organs at risk such as the kidneys and liver and in obtaining tighter isodose volumes. More research needs to be done to develop a conclusion about which technique, if either, provides superior conformity indices. Overall, VMAT provides a lower integral dose. However, both smaller tumor volume and smaller patient circumference result in lower integral doses for both treatment techniques. Limitations The dose constraints used by our institution are unique and there is no guarantee that another institution, using different dose constraints, will obtain the same results. Furthermore there is variability in amongst patients and because of our small sample size (n=18) we cannot confidently make a conclusion about the entire population of pancreatic cancer patients. 4
13 References [1] Regine WF, Winter KA, Abrams RA, et al. Fluorouracil vs gemcitabine chemotherapy before and after fluorouracil-based chemoradiation following resection of pancreatic adenocarcinoma: A randomized controlled trial. JAMA : the journal of the American Medical Association 2008;299: [2] Landry JC, Yang GY, Ting JY, Staley CA, Torres W, Esiashvili N, Davis LW. Treatment of pancreatic cancer tumors with intensity-modulated radiation therapy (IMRT) using the volume at risk approach (VARA): employing dose-volume histogram (DVH) and normal tissue complication probability (NTCP) to evaluate small bowel toxicity.med Dosim Summer;27(2): [3] Poppe MM, Narra V, Yue NJ, Zhou J, Nelson C, Jabbour SK. A comparison of helical intensity-modulated radiotherapy, intensity-modulated radiotherapy, and 3D-conformal radiation therapy for pancreatic cancer. Med Dosim Winter;36(4): [4] Brown MW, Ning H, Arora B, et al. A dosimetric analysis of dose escalation using two intensity-modulated radiation therapy techniques in locally advanced pancreatic carcinoma. Int J Radiat Oncol Biol Phys 2006;65: [5] Yovino S, Poppe M, Jabbour S, et al. Intensity-modulated radiation therapy significantly improves acute gastrointestinal toxicity in pancreatic and ampullary cancers. Int J Radiat Oncol Biol Phys 2011;79: [6] Otto K. Volumetric modulated arc therapy: Imrt in a single gantry arc. Medical physics 2008;35: [7] Palma D, Vollans E, James K, et al. Volumetric modulated arc therapy for delivery of prostate radiotherapy: Comparison with intensity-modulated radiotherapy and threedimensional conformal radiotherapy. Int J Radiat Oncol Biol Phys 2008;72: [8] White P, Chan KC, Cheng KW, Chan KY, Chau MC. Volumetric intensity-modulated arc therapy vs conventional intensity-modulated radiation therapy in nasopharyngeal carcinoma: a dosimetric study. J Radiat Res May;54(3): [9] Taylor R, Opfermann K, Jones BD, Terwilliger LE, McDonald DG, Ashenafi MS, Garrett-Meyer E, Marshall DT. Comparison of radiation treatment delivery for pancreatic cancer: Linac intensity-modulated radiotherapy versushelical TomoTherapy. J Med Imaging Radiat Oncol Jun;56(3): [10] Chargari C, Campana F, Beuzeboc P, Zefkili S, Kirova YM. Preliminary experience of helical TomoTherapy for locally advanced pancreatic cancer. World J Gastroenterol Sep 21;15(35): [11] Cao D, Holmes TW, Afghan MK, Shepard DM. Comparison of plan quality provided by intensity-modulated arc therapy and helical TomoTherapy. Int J Radiat Oncol Biol Phys Sep 1;69(1): [12] Fogliata A, Clivio A, Nicolini G, Vanetti E, Cozzi L. Intensity modulation with photons for benign intracranial tumours: a planning comparison of volumetric single arc, helical arc and fixed gantry techniques. Radiother Oncol Dec;89(3): [13] Fuss M, Salter BJ, Rassiah P, et al. Repositioning accuracy of a commercially available double-vacuum whole body immobilization system for stereotactic body radiation therapy. Technology in cancer research & treatment 2004;3:
14 [14] Marks, L.B.; Yorke, E.D.; Jackson, A.; et al. Use of normal tissue complication probability models in the clinic. Int. J. Radiat. Oncol. Biol. Phys. 76:S10 9, http//dx.doi.org/ /j.ijrobp [15] D Souza W, Isaac R. Nontumor integral dose variation in conventional radiotherapy treatment planning. Med. Phys Aug; 30(8): [16] Yang R, Xu S, Jiang W, Wang J, Xie C. Dosimetric comparison of postoperative whole pelvic radiotherapy for endometrial cancer using three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, and helical Tomotherapy. Acta Oncol. 2010;49(2): [17] Cai J, Yue J, McLawhorn R, et al. Dosimetric comparison of 6 MV and 15 MV single arc rapidarc to helical TomoTherapy for the treatment of pancreatic cancer. Med Dosim Autumn; 36(3): [18] Pasquier D, Cavillon F, Lacornerie T, Touzeau C, Tresch E, Lartigau E. A dosimetric comparison of TomoTherapy and volumetric modulated arc therapy in the treatment of high-risk prostate cancer with pelvic nodal radiation therapy. Int J Radiat Oncol Biol Phys Feb 1;85(2): [19] Oliver M, Ansbacher W, Beckham WA. Comparing planning time, delivery time and plan quality for IMRT, RapidArc and Tomotherapy [abstract] J appl Med Phys. 2009;10:
15 Appendix Table 1 OAR Left kidney VMAT HT t-test VMAT vs. HT Dmean (Gy) 15.6± ±3.5 <.001 Range V15 (cc) 45.2± ±56.6 <.001 Range V20 (cc) 23.6± ±35.5 <.001 Range Right kidney Dmean (Gy) 15.0± ±4.6 <.001 Range V15 (cc) 44.9± ±36.3 <.001 Range V20 (cc) 24.6± ±20.5 <.001 Range Liver Dmean (Gy) 13.0± ±5.0 <.001 Range V30 (cc) 10.4± ±161.2 <.001 Range Spinal cord Dmax (Gy) 35.1± ± Range PTV Dmean (Gy) 60.9± ± Range D95% (Gy) 56.6± ± Range Integral Dose ± ± <.001 Range
16 Table 2 CI Deviation (%) VMAT HT t-test Large field 4.5± ± Range Boost 4.2± ± Range Iso 25% (cc) ± ± <.001 Range Iso 50% (cc) ± ± Range Iso 90% (cc) 884.7± ±449.2 <.001 Range Iso 100% (cc) 717.0± ±345.1 <.001 Range Boost Iso 25% (cc) ± ± <.001 Range Boost Iso 50% (cc) ± ±843.9 <.001 Range Boost Iso 90% (cc) 342.8± ± Range Boost Iso 100% (cc) 290.6± ± Range
17 Table 3 VMAT Average t-test G1 G2 G3 G1-G2 G1-G3 G2-G3 CI Large Deviation from 1.0 (%) Range CI Boost Deviation from 1.0 (%) Range L Kidney Mean (Gy) Range R Kidney Mean (Gy) Range Liver Mean (Gy) Range Spine Max (Gy) Range Integral Dose < Range HT CI Large Deviation from 1.0 (%) Range CI Boost Deviation from 1.0 (%) Range L Kidney Mean (Gy) Range R Kidney Mean (Gy) Range Liver Mean (Gy) Range Spine Max (Gy) Range Integral Dose < Range *G1 averaged a tumor volume of 438.0cm3, G cm3, and G cm3 9
18 Table 4 VMAT Average t-test G1 G2 G1-G2 CI Large Deviation from 1.0 (%) Range CI Boost Deviation from 1.0 (%) Range L Kidney Mean (Gy) Range R Kidney Mean (Gy) Range Liver Mean (Gy) Range PTV Mean Range Spine Max (Gy) Range Integral Dose (Gy) Range HT CI Large Deviation from 1.0 (%) Range CI Boost Deviation from 1.0 (%) Range L Kidney Mean (Gy) Range R Kidney Mean (Gy) Range Liver Mean (Gy) Range PTV Mean Range Spine Max (Gy) Range Integral Dose (Gy) Range *G1 averaged a patient circumference of 295cm, G2 averaged 541cm 10
Feasibility of the partial-single arc technique in RapidArc planning for prostate cancer treatment
Chinese Journal of Cancer Original Article Feasibility of the partial-single arc technique in RapidArc planning for prostate cancer treatment Suresh Rana 1 and ChihYao Cheng 2 Abstract The volumetric modulated
More informationA TREATMENT PLANNING STUDY COMPARING VMAT WITH 3D CONFORMAL RADIOTHERAPY FOR PROSTATE CANCER USING PINNACLE PLANNING SYSTEM *
Romanian Reports in Physics, Vol. 66, No. 2, P. 394 400, 2014 A TREATMENT PLANNING STUDY COMPARING VMAT WITH 3D CONFORMAL RADIOTHERAPY FOR PROSTATE CANCER USING PINNACLE PLANNING SYSTEM * D. ADAM 1,2,
More informationA treatment planning study comparing Elekta VMAT and fixed field IMRT using the varian treatment planning system eclipse
Peters et al. Radiation Oncology 2014, 9:153 RESEARCH Open Access A treatment planning study comparing Elekta VMAT and fixed field IMRT using the varian treatment planning system eclipse Samuel Peters
More informationWHOLE-BRAIN RADIOTHERAPY WITH SIMULTANEOUS INTEGRATED BOOST TO MULTIPLE BRAIN METASTASES USING VOLUMETRIC MODULATED ARC THERAPY
doi:10.1016/j.ijrobp.2009.03.029 Int. J. Radiation Oncology Biol. Phys., Vol. 75, No. 1, pp. 253 259, 2009 Copyright Ó 2009 Elsevier Inc. Printed in the USA. All rights reserved 0360-3016/09/$ see front
More informationTreatment Planning Evaluation of Volumetric Modulated Arc Therapy (VMAT) for Craniospinal Irradiation (CSI)
Treatment Planning Evaluation of Volumetric Modulated Arc Therapy (VMAT) for Craniospinal Irradiation (CSI) Tagreed AL-ALAWI Medical Physicist King Abdullah Medical City- Jeddah Aim 1. Simplify and standardize
More informationInternational Multispecialty Journal of Health (IMJH) ISSN: [ ] [Vol-3, Issue-9, September- 2017]
Dosimetric evaluation of carcinoma nasopharynx using Volumetric Modulated Arc Therapy (VMAT): An institutional experience from Western India Dr. Upendra Nandwana 1, Dr. Shuchita Pathak 2, Dr. TP Soni 3,
More informationDosimetric Analysis of 3DCRT or IMRT with Vaginal-cuff Brachytherapy (VCB) for Gynaecological Cancer
Dosimetric Analysis of 3DCRT or IMRT with Vaginal-cuff Brachytherapy (VCB) for Gynaecological Cancer Tan Chek Wee 15 06 2016 National University Cancer Institute, Singapore Clinical Care Education Research
More informationThe performance of the progressive resolution optimizer (PRO) for RapidArc planning in targets with low-density media
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 14, NUMBER 6, 2013 The performance of the progressive resolution optimizer (PRO) for RapidArc planning in targets with low-density media Monica W.K.
More informationAdvances in external beam radiotherapy
International Conference on Modern Radiotherapy: Advances and Challenges in Radiation Protection of Patients Advances in external beam radiotherapy New techniques, new benefits and new risks Michael Brada
More informationIMAT: intensity-modulated arc therapy
: intensity-modulated arc therapy M. Iori S. Maria Nuova Hospital, Medical Physics Department Reggio Emilia, Italy 1 Topics of the talk Rotational IMRT techniques: modalities & dedicated inverse-planning
More informationOriginal Article. Teyyiba Kanwal, Muhammad Khalid, Syed Ijaz Hussain Shah, Khawar Nadeem
Original Article Treatment Planning Evaluation of Sliding Window and Multiple Static Segments Technique in Intensity Modulated Radiotherapy for Different Beam Directions Teyyiba Kanwal, Muhammad Khalid,
More informationThe role of Radiation Oncologist: Hi-tech treatments for liver metastases
The role of Radiation Oncologist: Hi-tech treatments for liver metastases Icro Meattini, MD Radiotherapy-Oncology Unit AOU Careggi Hospital Florence University, Italy Liver Metastases - Background The
More informationA Dosimetric Comparison of Whole-Lung Treatment Techniques. in the Pediatric Population
A Dosimetric Comparison of Whole-Lung Treatment Techniques in the Pediatric Population Corresponding Author: Christina L. Bosarge, B.S., R.T. (R) (T) Indiana University School of Medicine Department of
More informationResearch Article An IMRT/VMAT Technique for Nonsmall Cell Lung Cancer
Hindawi Publishing Corporation BioMed Research International Volume 2015, Article ID 613060, 7 pages http://dx.doi.org/10.1155/2015/613060 Research Article An IMRT/VMAT Technique for Nonsmall Cell Lung
More informationVMAT planning study in rectal cancer patients
Shang et al. Radiation Oncology 2014, 9:219 RESEARCH Open Access VMAT planning study in rectal cancer patients Jun Shang, Wei Kong, Yan-yang Wang *, Zhe Ding, Gang Yan and Hong Zhe Abstract Background:
More informationThe objective of this lecture is to integrate our knowledge of the differences between 2D and 3D planning and apply the same to various clinical
The objective of this lecture is to integrate our knowledge of the differences between 2D and 3D planning and apply the same to various clinical sites. The final aim will be to be able to make out these
More informationEvaluation of Three-dimensional Conformal Radiotherapy and Intensity Modulated Radiotherapy Techniques in High-Grade Gliomas
1 Carol Boyd Comprehensive Case Study July 11, 2013 Evaluation of Three-dimensional Conformal Radiotherapy and Intensity Modulated Radiotherapy Techniques in High-Grade Gliomas Abstract: Introduction:
More informationKnowledge-Based IMRT Treatment Planning for Prostate Cancer: Experience with 101. Cases from Duke Clinic. Deon Martina Dick
Knowledge-Based IMRT Treatment Planning for Prostate Cancer: Experience with 101 Cases from Duke Clinic by Deon Martina Dick Department of Medical Physics Duke University Date: Approved: Joseph Lo, Chair
More informationPage 1. Helical (Spiral) Tomotherapy. UW Helical Tomotherapy Unit. Helical (Spiral) Tomotherapy. MVCT of an Anesthetized Dog with a Sinus Tumor
Helical (Spiral) Tomotherapy Novel Clinical Applications of IMRT Linac Ring Gantry CT Detector X-Ray Fan Beam Binary Multileaf Collimator Binary MLC Leaves James S Welsh, MS, MD Department of Human Oncology
More informationEvaluation of Whole-Field and Split-Field Intensity Modulation Radiation Therapy (IMRT) Techniques in Head and Neck Cancer
1 Charles Poole April Case Study April 30, 2012 Evaluation of Whole-Field and Split-Field Intensity Modulation Radiation Therapy (IMRT) Techniques in Head and Neck Cancer Abstract: Introduction: This study
More informationVaginal Sparing with Volumetric Modulated Arc Therapy (VMAT) for Rectal Cancer. Scott Boulet BSc, RT(T)
Vaginal Sparing with Volumetric Modulated Arc Therapy (VMAT) for Rectal Cancer Scott Boulet BSc, RT(T) Outline Background Objectives Design Results Discussion Conclusion Acknowledgements Questions Background
More informationEfficient SIB-IMRT planning of head & neck patients with Pinnacle 3 -DMPO
Investigations and research Efficient SIB-IMRT planning of head & neck patients with Pinnacle 3 -DMPO M. Kunze-Busch P. van Kollenburg Department of Radiation Oncology, Radboud University Nijmegen Medical
More informationEvaluation of Monaco treatment planning system for hypofractionated stereotactic volumetric arc radiotherapy of multiple brain metastases
Evaluation of Monaco treatment planning system for hypofractionated stereotactic volumetric arc radiotherapy of multiple brain metastases CASE STUDY Institution: Odette Cancer Centre Location: Sunnybrook
More informationTHE TRANSITION FROM 2D TO 3D AND TO IMRT - RATIONALE AND CRITICAL ELEMENTS
THE TRANSITION FROM 2D TO 3D AND TO IMRT - RATIONALE AND CRITICAL ELEMENTS ICTP SCHOOL ON MEDICAL PHYSICS FOR RADIATION THERAPY DOSIMETRY AND TREATMENT PLANNING FOR BASIC AND ADVANCED APPLICATIONS March
More informationHelical Tomotherapy Experience. TomoTherapy Whole Brain Head & Neck Prostate Lung Summary. HI-ART TomoTherapy System. HI-ART TomoTherapy System
The Challenges Associated with Differential Dose Delivery using IMRT Chester Ramsey, Ph.D. Director of Medical Physics Thompson Cancer Center Knoxville, Tennessee, U.S.A Collaborators Chester Ramsey, Ph.D.
More informationStatistical Analysis and Volumetric Dose for Organ at Risk of Prostate Cancer
The African Review of Physics (2013) 8:0063 477 Statistical Analysis and Volumetric Dose for Organ at Risk of Prostate Cancer F. Assaoui¹,*, A. Bazine² and T. Kebdani³ ¹ Medical Physics Unit, Radiotherapy
More informationEvaluation of the Dynamic Arc-Therapy in Comparison to Conformal Radiation Therapy in Radiotherapy Patients
Evaluation of the Dynamic Arc-Therapy in Comparison to Conformal Radiation Therapy in Radiotherapy Patients Aliaa Mahmoud (1,4), Ehab M. Attalla (2,3), M..S. El-Nagdy (4), Gihan Kamel (4) (1) Radiation
More informationAddress for Correspondence: Department of Medical Physics, Khwaja Yunus Ali University, Enayetpur, Sirajgonj ,
ORIGINAL ARTICLE Dosimetric Comparison of Different 3DCRT Techniques in Left Breast Cancer Radiotherapy Planning Abdus Sattar Mollah 1 and Meher Niger Sharmin 2 1 Department of Medical Physics, KhwajaYunus
More information3-Dimensional conformal radiotherapy versus intensity modulated radiotherapy for localized prostate cancer: Dosimetric and radiobiologic analysis
Iran. J. Radiat. Res., 2007; 5 (1): 1-8 3-Dimensional conformal radiotherapy versus intensity modulated radiotherapy for localized prostate cancer: Dosimetric and radiobiologic analysis A.K. Bhardwaj 1*,T.S.
More informationDosimetric Analysis of Respiratory-Gated RapidArc with Varying Gating Window Times
Original Article PROGRESS in MEDICAL PHYSICS Vol. 26, No. 2, June, 2015 http://dx.doi.org/10.14316/pmp.2015.26.2.87 Dosimetric Analysis of Respiratory-Gated RapidArc with Varying Gating Window Times Mee
More informationQuality assurance of volumetric modulated arc therapy using Elekta Synergy
Acta Oncologica, 2009; 48: 11931197 ORIGINAL ARTICLE Quality assurance of volumetric modulated arc therapy using Elekta Synergy AKIHIRO HAGA 1, KEIICHI NAKAGAWA 1, KENSHIRO SHIRAISHI 1, SAORI ITOH 1, ATSURO
More informationGuidelines for the use of inversely planned treatment techniques in Clinical Trials: IMRT, VMAT, TomoTherapy
Guidelines for the use of inversely planned treatment techniques in Clinical Trials: IMRT, VMAT, TomoTherapy VERSION 2.1 April 2015 Table of Contents Abbreviations & Glossary... 3 Executive Summary...
More informationRuijie Yang 1*, Junjie Wang 1, Shouping Xu 2 and Hua Li 3
Yang et al. BMC Cancer 2013, 13:515 RESEARCH ARTICLE SmartArc-based volumetric modulated arc therapy for endometrial cancer: a dosimetric comparison with helical tomotherapy and intensity-modulated radiation
More informationCorporate Medical Policy
Corporate Medical Policy Intensity Modulated Radiation Therapy (IMRT) of Abdomen and File Name: Origination: Last CAP Review: Next CAP Review: Last Review: intensity_modulated_radiation_therapy_imrt_of_abdomen_and_pelvis
More informationRole of Belly Board Device in the Age of Intensity Modulated Radiotherapy for Pelvic Irradiation
Role of Belly Board Device in the Age of Intensity Modulated Radiotherapy for Pelvic Irradiation 2017 AAMD 42 nd Annual Meeting Neil C. Estabrook, MD 6 / 14 / 2017 7/5/2017 1 Conflicts of Interest None
More informationReena Phurailatpam. Intensity Modulated Radiation Therapy of Medulloblastoma using Helical TomoTherapy: Initial Experience from planning to delivery
Intensity Modulated Radiation Therapy of Medulloblastoma using Helical TomoTherapy: Initial Experience from planning to delivery Reena Phurailatpam Tejpal Gupta, Rakesh Jalali, Zubin Master, Bhooshan Zade,
More informationImage Guided Stereotactic Radiotherapy of the Lung
Image Guided Stereotactic Radiotherapy of the Lung Jamie Marie Harris, MS DABR Avera McKennan Radiation Oncology September 25, 2015 Stereotactic Body Radiotherapy - Clinical Dose/Fractionation - Normal
More informationEvaluation of Dynamic Delivery Quality Assurance Process for Internal Target Volume Based RapidArc
Original Article PMP Progress in Medical Physics 28(4), December 217 https://doi.org/1.14316/pmp.217.28.4.181 pissn 258-4445, eissn 258-4453 Evaluation of Dynamic Delivery Quality Assurance Process for
More informationLinac or Non-Linac Demystifying And Decoding The Physics Of SBRT/SABR
Linac or Non-Linac Demystifying And Decoding The Physics Of SBRT/SABR PhD, FAAPM, FACR, FASTRO Department of Radiation Oncology Indiana University School of Medicine Indianapolis, IN, USA Indra J. Das,
More informationProstate volumetric-modulated arc therapy: dosimetry and radiobiological model variation between the single-arc and double-arc technique
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 14, NUMBER 3, 2013 Prostate volumetric-modulated arc therapy: dosimetry and radiobiological model variation between the single-arc and double-arc technique
More informationIROC Liver Phantom. Guidelines for Planning and Irradiating the IROC Liver Phantom. Revised July 2015
IROC Liver Phantom Guidelines for Planning and Irradiating the IROC Liver Phantom. Revised July 2015 The study groups are requests that each institution keep the phantom for no more than 2 weeks. During
More informationA VMAT PLANNING SOLUTION FOR NECK CANCER PATIENTS USING THE PINNACLE 3 PLANNING SYSTEM *
Romanian Reports in Physics, Vol. 66, No. 2, P. 401 410, 2014 A VMAT PLANNING SOLUTION FOR NECK CANCER PATIENTS USING THE PINNACLE 3 PLANNING SYSTEM * M. D. SUDITU 1,2, D. ADAM 1,2, R. POPA 1,2, V. CIOCALTEI
More informationThe effect of body contouring on the dose distribution delivered with volumetric-modulated arc therapy technique
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 16, NUMBER 6, 2015 The effect of body contouring on the dose distribution delivered with volumetric-modulated arc therapy technique Jaegi Lee, 1,2 Jong
More informationRadiobiological Impact of Planning Techniques for Prostate Cancer in Terms of Tumor Control Probability and Normal Tissue Complication Probability
Original Article Radiobiological Impact of Planning Techniques for Prostate Cancer in Terms of Tumor Control Probability and Normal Tissue Complication Probability Rana S, Cheng CY Department of Medical
More informationVolumetric Modulated Arc Therapy in a Large Body Habitus Patient with Left Breast Cancer: A Dosimetric Study
imedpub Journals http://www.imedpub.com Archives Archives in Cancer in Cancer Research Research ISSN 2254-681 Abstract Volumetric Modulated Arc Therapy in a Large Body Habitus Patient with Left Breast
More informationIMRT Planning Basics AAMD Student Webinar
IMRT Planning Basics AAMD Student Webinar March 12, 2014 Karen Chin Snyder, MS Senior Associate Physicist Department of Radiation Oncology Disclosures The presenter has received speaker honoraria from
More informationDosimetry of conformal dynamic arc radiotherapy and intensity modulated radiotherapy in unresectable cholangiocarcinoma
Asian Biomedicine Vol. 4 No. 1 February 2010; 131-139 Technical report Dosimetry of conformal dynamic arc radiotherapy and intensity modulated radiotherapy in unresectable cholangiocarcinoma Thanarpan
More informationBaotian Huang 1, Lili Wu 1, Peixian Lin 2 and Chuangzhen Chen 1*
Huang et al. Radiation Oncology (2015) 10:53 DOI 10.1186/s13014-015-0357-0 RESEARCH Open Access Dose calculation of Acuros XB and Anisotropic Analytical Algorithm in lung stereotactic body radiotherapy
More informationA Comparison of IMRT and VMAT Technique for the Treatment of Rectal Cancer
A Comparison of IMRT and VMAT Technique for the Treatment of Rectal Cancer Tony Kin Ming Lam Radiation Planner Dr Patricia Lindsay, Radiation Physicist Dr John Kim, Radiation Oncologist Dr Kim Ann Ung,
More informationVOLUMETRIC-MODULATED ARC THERAPY VS. 3D-CONFORMAL RADIOTHERAPY FOR BREAST CANCER
Romanian Reports in Physics, Vol. 67, No. 3, P. 978 986, 2015 VOLUMETRIC-MODULATED ARC THERAPY VS. 3D-CONFORMAL RADIOTHERAPY FOR BREAST CANCER D. ADAM 1, 2, M.D. SUDITU 1, 2, R. POPA 1, 2, V. CIOCALTEI
More informationTOMOTERAPIA in Italia: Esperienze a confronto
TOMOTERAPIA in Italia: Esperienze a confronto BARD 20 novembre 2010 L esperienza di Reggio Emilia Testa collo Alessandro Muraglia Reasons for the use of tomotherapy: - Complex tumor geometry and proximity
More informationSBRT fundamentals. Outline 8/2/2012. Stereotactic Body Radiation Therapy Quality Assurance Educational Session
Stereotactic Body Radiation Therapy Quality Assurance Educational Session J Perks PhD, UC Davis Medical Center, Sacramento CA SBRT fundamentals Extra-cranial treatments Single or small number (2-5) of
More informationVMAT plans for treatment prostate cancer: Dosimetric verifications and comparison with 3D-CRT and IMRT
VMAT plans for treatment prostate cancer: Dosimetric verifications and comparison with 3D-CRT and IMRT Poster No.: C-0520 Congress: ECR 2011 Type: Scientific Exhibit Authors: Y. Kawasaki, S. Tadokoro,
More informationChapters from Clinical Oncology
Chapters from Clinical Oncology Lecture notes University of Szeged Faculty of Medicine Department of Oncotherapy 2012. 1 RADIOTHERAPY Technical aspects Dr. Elemér Szil Introduction There are three possibilities
More informationDosimetric Comparison of Intensity-Modulated Radiotherapy versus 3D Conformal Radiotherapy in Patients with Head and Neck Cancer
Dosimetric Comparison of Intensity-Modulated Radiotherapy versus 3D Conformal Radiotherapy in Patients with Head and Neck Cancer 1- Doaa M. AL Zayat. Ph.D of medical physics, Ayadi-Al Mostakbl Oncology
More informationA dosimetric evaluation of VMAT for the treatment of non-small cell lung cancer
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 14, NUMBER 1, 2013 A dosimetric evaluation of VMAT for the treatment of non-small cell lung cancer Caitlin E. Merrow, a Iris Z. Wang, Matthew B. Podgorsak
More information162 Popescu et al.: Couch gantry arc in partial breast 162
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 14, NUMBER 1, 2013 Simultaneous couch and gantry dynamic arc rotation (CG-Darc) in the treatment of breast cancer with accelerated partial breast irradiation
More informationLung Spine Phantom. Guidelines for Planning and Irradiating the IROC Spine Phantom. MARCH 2014
Lung Spine Phantom Guidelines for Planning and Irradiating the IROC Spine Phantom. MARCH 2014 The study groups are requesting that each institution keep the phantom for no more than 2 week. During this
More informationNEWER RADIATION (3 D -CRT, IMRT, IGRT) TECHNIQUES FOR CERVICAL CANCERS (COMMON PELVIC TUMORS)
NEWER RADIATION (3 D -CRT, IMRT, IGRT) TECHNIQUES FOR CERVICAL CANCERS (COMMON PELVIC TUMORS) Umesh Mahantshetty, DMRT, MD, DNBR Associate Professor, Radiation Oncology Convener: Urology Disease Management
More informationA dosimetric comparison of proton and photon therapy in unresectable cancers of the head of pancreas
A dosimetric comparison of proton and photon therapy in unresectable cancers of the head of pancreas Reid F. Thompson University of Pennsylvania, Philadelphia, Pennsylvania 1914 Sonal U. Mayekar Thomas
More informationThe Physics of Oesophageal Cancer Radiotherapy
The Physics of Oesophageal Cancer Radiotherapy Dr. Philip Wai Radiotherapy Physics Royal Marsden Hospital 1 Contents Brief clinical introduction Imaging and Target definition Dose prescription & patient
More informationDefining Target Volumes and Organs at Risk: a common language
Defining Target Volumes and Organs at Risk: a common language Eduardo Rosenblatt Section Head Applied Radiation Biology and Radiotherapy (ARBR) Section Division of Human Health IAEA Objective: To introduce
More informationDosimetric evaluation of nasopharyngeal carcinomas irradiated with different IMRT techniques
JBUON 2014; 19(4): 953-957 ISSN: 1107-0625, online ISSN: 2241-6293 www.jbuon.com E-mail: editorial_office@jbuon.com ORIGINAL ARTICLE Dosimetric evaluation of nasopharyngeal carcinomas irradiated with different
More informationPitfalls in SBRT Treatment Planning for a Moving Target
Pitfalls in SBRT Treatment Planning for a Moving Target Cynthia F. Chuang, Ph.D. Department of Radiation Oncology University of California-San Francisco I have no conflicts of interests to disclose In
More informationCURRICULUM OUTLINE FOR TRANSITIONING FROM 2-D RT TO 3-D CRT AND IMRT
CURRICULUM OUTLINE FOR TRANSITIONING FROM 2-D RT TO 3-D CRT AND IMRT Purpose The purpose of this curriculum outline is to provide a framework for multidisciplinary training for radiation oncologists, medical
More informationLung SBRT: dosimetric and delivery comparison of RapidArc, TomoTherapy, and IMRT
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 14, NUMBER 4, 2013 Lung SBRT: dosimetric and delivery comparison of RapidArc, TomoTherapy, and IMRT Ashleigh Weyh, 1a Andre Konski, 1,2 Adrian Nalichowski,
More informationThe Effects of DIBH on Liver Dose during Right-Breast Treatments: A Case Study Abstract: Introduction: Case Description: Conclusion: Introduction
1 The Effects of DIBH on Liver Dose during Right-Breast Treatments: A Case Study Megan E. Sullivan, B.S., R.T.(T)., Patrick A. Melby, B.S. Ashley Hunzeker, M.S., CMD, Nishele Lenards, M.S., CMD, R.T. (R)(T),
More informationRADIATION ONCOLOGY RESIDENCY PROGRAM Competency Evaluation of Resident
Resident s Name: RADIATION ONCOLOGY RESIDENCY PROGRAM Competency Evaluation of Resident Rotation: PHYS 703: Clinical Rotation 2 Inclusive dates of rotation: Feb. 26, 2016 Aug. 25, 2016 Director or Associate
More informationRapidArc vs Conventional IMRT for Head and Neck Cancer Irradiation: Is Faster Necessary Better?
DOI:10.22034/APJCP.2018.19.1.207 RESEARCH ARTICLE Editorial Process: Submission:10/05/2017 Acceptance:12/13/2017 RapidArc vs Conventional IMRT for Head and Neck Cancer Irradiation: Is Faster Necessary
More informationDoes the IMRT technique allow improvement of treatment plans (e.g. lung sparing) for lung cancer patients with small lung volume: a planning study
Does the IMRT technique allow improvement of treatment plans (e.g. lung sparing) for lung cancer patients with small lung volume: a planning study Received: 22.04.2008 Accepted: 4.07.2008 Subject: original
More informationMeasurement of Dose to Critical Structures Surrounding the Prostate from. Intensity-Modulated Radiation Therapy (IMRT) and Three Dimensional
Measurement of Dose to Critical Structures Surrounding the Prostate from Intensity-Modulated Radiation Therapy (IMRT) and Three Dimensional Conformal Radiation Therapy (3D-CRT); A Comparative Study Erik
More informationJOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 17, NUMBER 6, 2016
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 17, NUMBER 6, 2016 Dosimetric and volumetric changes in the rectum and bladder in patients receiving CBCT-guided prostate IMRT: analysis based on daily
More informationThe Effects of DIBH on Liver Dose during Right-Breast Treatments Introduction
1 The Effects of DIBH on Liver Dose during Right-Breast Treatments Megan E. Sullivan B.S.R.T.(T)., Patrick A. Melby, B.S. Ashley Hunzeker, M.S., CMD, Nishele Lenards, M.S., CMD Medical Dosimetry Program
More informationA comparative study of identical VMAT plans with and without jaw tracking technique
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 17, NUMBER 5, 2016 A comparative study of identical VMAT plans with and without jaw tracking technique Hao Wu,* Fan Jiang,* Haizhen Yue, Qiaoqiao Hu,
More informationApplications of Modern Radiotherapy Systems
Applications of Modern Radiotherapy Systems Thomas Rockwell Mackie Professor University of Wisconsin Co-Founder and Chairman of the Board TomoTherapy Inc. Financial Disclosure I am a founder and Chairman
More informationFuli Zhang, Weidong Xu, Huayong Jiang, Yadi Wang ( ), Junmao Gao, Qingzhi Liu
Oncology and Translational Medicine DOI 10.1007/s10330-018-0302-2 October 2018, Vol. 4, No. 5, P208 P214 ORIGINAL ARTICLE Dosimetric evaluation of VMAT radiation therapy technique for breast cancer after
More informationSBRT TREATMENT PLANNING: TIPS + TRICKS. Rachel A. Hackett CMD, RT(T)
SBRT TREATMENT PLANNING: TIPS + TRICKS Rachel A. Hackett CMD, RT(T) OUTLINE Brief radiobiology review 3D CRT Tx Planning VMAT Tx Planning Protocols Other Sites Oligomets Spine Liver Kidney Adrenal Gland
More informationThree dimensional conformal radiotherapy for synchronous bilateral breast irradiation using a mono iso-center technique
Polish Journal of Medical Physics and Engineering 2017;23(2):15-19 June 2017 doi: 10.1515/pjmpe-2017-0004 ISSN 1898-0309 Scientific Paper Three dimensional conformal radiotherapy for synchronous bilateral
More informationVariation of organ at risk dose due to daily rectal filling during prostate intensitymodulated
Variation of organ at risk dose due to daily rectal filling during prostate intensitymodulated radiotherapy Leonel A. Kahn B.S., Arthur Y. Hung, M.D., Barbara Agrimson, B.S., C.M.D., Sanja Ognjenovic,
More informationKeywords: nasopharyngeal cancer, intensity modulated radiation therapy, volumetric modulated arc therapy, xerostomia
Comparative evaluation of the doses received by the parotid glands as predictors of xerostomia be 3D-CRT, IMRT and VMAT irradiation techniques in local advanced nasopharynx cancer Camil Mireștean 1, Călin
More informationMany vendors are beginning to allow couch motion during radiation delivery.
Dynamic Couch Motion Many vendors are beginning to allow couch motion during radiation delivery. Varian developer mode allows institutions to perform research using these types of treatments. Tomotherapy
More informationIMRT - the physician s eye-view. Cinzia Iotti Department of Radiation Oncology S.Maria Nuova Hospital Reggio Emilia
IMRT - the physician s eye-view Cinzia Iotti Department of Radiation Oncology S.Maria Nuova Hospital Reggio Emilia The goals of cancer therapy Local control Survival Functional status Quality of life Causes
More informationA comprehensive dosimetric evaluation of using RapidArc volumetric-modulated arc therapy for the treatment of early-stage nasopharyngeal carcinoma
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 13, NUMBER 6, 2012 A comprehensive dosimetric evaluation of using RapidArc volumetric-modulated arc therapy for the treatment of early-stage nasopharyngeal
More informationA dosimetric comparison between volumetric-modulated arc therapy and dynamic conformal arc therapy in SBRT
JBUON 2019; 24(2): 838-843 ISSN: 1107-0625, online ISSN: 2241-6293 www.jbuon.com E-mail: editorial_office@jbuon.com ORIGINAL ARTICLE A dosimetric comparison between volumetric-modulated arc therapy and
More informationPotential benefits of intensity-modulated proton therapy in head and neck cancer van de Water, Tara Arpana
University of Groningen Potential benefits of intensity-modulated proton therapy in head and neck cancer van de Water, Tara Arpana IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's
More informationQuality Assurance of TPS: comparison of dose calculation for stereotactic patients in Eclipse and iplan RT Dose
Petrovic B Comparison of dose calculation algorithms for stereotaxy Quality Assurance of TPS: comparison of dose calculation for stereotactic patients in and RT Dose Borislava Petrovic 1, Aleksandra Grządziel
More informationOPTIMIZATION OF COLLIMATOR PARAMETERS TO REDUCE RECTAL DOSE IN INTENSITY-MODULATED PROSTATE TREATMENT PLANNING
Medical Dosimetry, Vol. 30, No. 4, pp. 205-212, 2005 Copyright 2005 American Association of Medical Dosimetrists Printed in the USA. All rights reserved 0958-3947/05/$ see front matter doi:10.1016/j.meddos.2005.06.002
More informationRTTs role in lung SABR
RTTs role in lung SABR Bart van Baaren Lineke van der Weide VU Medical Centre SBRT symposium VUMC 16 December 2017 Flow chart lung SABR Pre-treatment imaging Treatment planning On-line imaging Treatment
More informationCorporate Medical Policy
Corporate Medical Policy Intensity Modulated Radiation Therapy (IMRT) of Head and Neck File Name: Origination: Last CAP Review: Next CAP Review: Last Review: intensity_modulated_radiation_therapy_imrt_of_head_and_neck
More informationOverview of Advanced Techniques in Radiation Therapy
Overview of Advanced Techniques in Radiation Therapy Jacob (Jake) Van Dyk Manager, Physics & Engineering, LRCP Professor, UWO University of Western Ontario Acknowledgements Glenn Bauman Jerry Battista
More informationPMP. Original Article. Introduction. Hee Jung Kim, Sung Yong Park, Young Hee Park, Ah Ram Chang
Original Article PMP Progress in Medical Physics 28(1), March 217 https://doi.org/1.14316/pmp.217.28.1.27 pissn 258-4445, eissn 258-4453 Dosimetric Effects of Low Dose 4D CT Using a Commercial Iterative
More informationTURKISH JOURNAL of ONCOLOGY. Yasemin BÖLÜKBAŞI, 1,2,3 Yücel SAĞLAM, 2 Duygu SEZEN, 1 Z. Vildan ALPAN, 2 Steve KIRSNER, 3 Uğur SELEK 1,2,3
TURKISH JOURNAL of ONCOLOGY ORIGINAL ARTICLE Volumetric Arc Therapy Seems More Promising for Sparing Organs at Risk in Adjuvant Postoperative Radiotherapy for Pancreatic Adenocarcinoma than Step-and-Shoot
More informationStereotactic Body Radiotherapy (SBRT) For HCC T A R E K S H O U M A N P R O F. R A D I A T I O N O N C O L O G Y N C I, C A I R O U N I V.
Stereotactic Body Radiotherapy (SBRT) For HCC T A R E K S H O U M A N P R O F. R A D I A T I O N O N C O L O G Y N C I, C A I R O U N I V. Hepatocellular carcinoma (HCC), is a major health problem worldwide.
More informationDepartment of Radiotherapy & Nuclear Medicine, National Cancer Institute, Cairo University, Cairo, Egypt.
Original article Res. Oncol. Vol. 12, No. 1, Jun. 2016:10-14 Dosimetric comparison of 3D conformal conventional radiotherapy versus intensity-modulated radiation therapy both in conventional and high dose
More informationIGRT Protocol Design and Informed Margins. Conflict of Interest. Outline 7/7/2017. DJ Vile, PhD. I have no conflict of interest to disclose
IGRT Protocol Design and Informed Margins DJ Vile, PhD Conflict of Interest I have no conflict of interest to disclose Outline Overview and definitions Quantification of motion Influences on margin selection
More informationThis article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and
This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution
More informationI. Equipments for external beam radiotherapy
I. Equipments for external beam radiotherapy 5 linear accelerators (LINACs): Varian TrueBeam 6, 10 & 18 MV photons, 6-18 MeV electrons, image-guided (IGRT) and intensity modulated radiotherapy (IMRT),
More informationRESEARCH ARTICLE. Aydin Cakir 1, Zuleyha Akgun 2 *, Merdan Fayda 1, Fulya Agaoglu 1. Abstract. Introduction
DOI:http://dx.doi.org/10.7314/APJCP.2015.16.8.3365 3-D Conformal, Intensity Modulated and Volumetric Modulated Arc Radiation Therapies for Low Radiation Exposure RESEARCH ARTICLE Comparison of Three Dimensional
More informationIROC Lung Phantom 3D CRT / IMRT. Guidelines for Planning and Irradiating the IROC Lung Phantom. Revised Dec 2015
IROC Lung Phantom 3D CRT / IMRT Guidelines for Planning and Irradiating the IROC Lung Phantom. Revised Dec 2015 The IROC requests that each institution keep the phantom for no more than 2 weeks. During
More information