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radiation knowledge based planning

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https://www.readbyqxmd.com/read/28048932/th-b-204-03-tg-199-implanted-markers-for-radiation-treatment-verification
#1
Z Wang
: Implanted markers as target surrogates have been widely used for treatment verification, as they provide safe and reliable monitoring of the inter- and intra-fractional target motion. The rapid advancement of technology requires a critical review and recommendation for the usage of implanted surrogates in current field. The symposium, also reporting an update of AAPM TG 199 - Implanted Target Surrogates for Radiation Treatment Verification, will be focusing on all clinical aspects of using the implanted target surrogates for treatment verification and related issues...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048809/mo-d-brc-01-memorial-lecture
#2
B Fraass
Treatment planning is a central part of radiation therapy, including delineation in tumor volumes and critical organs, setting treatment goals of prescription doses to the tumor targets and tolerance doses to the critical organs, and finally generation of treatment plans to meet the treatment goals. National groups like RTOG have led the effort to standardize treatment goals of the prescription doses to the tumor targets and tolerance doses to the critical organs based on accumulated knowledge from decades of abundant clinical trial experience...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048786/mo-d-brc-04-multiple-criteria-optimization-planning
#3
J Donaghue
Treatment planning is a central part of radiation therapy, including delineation in tumor volumes and critical organs, setting treatment goals of prescription doses to the tumor targets and tolerance doses to the critical organs, and finally generation of treatment plans to meet the treatment goals. National groups like RTOG have led the effort to standardize treatment goals of the prescription doses to the tumor targets and tolerance doses to the critical organs based on accumulated knowledge from decades of abundant clinical trial experience...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048700/tu-d-bra-00-treatment-planning-system-commissioning-and-qa
#4
Greg Salomons
INTRODUCTION: Treatment planning systems (TPS) are a cornerstone of modern radiation therapy. Errors in their commissioning or use can have a devastating impact on many patients. To support safe and high quality care, medical physicists must conduct efficient and proper commissioning, good clinical integration, and ongoing quality assurance (QA) of the TPS. AAPM Task Group 53 and related publications have served as seminal benchmarks for TPS commissioning and QA over the past two decades...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048551/we-fg-brb-02-spatial-mapping-of-the-rbe-of-scanned-particle-beams
#5
D Grosshans
: The physical pattern of energy deposition and the enhanced relative biological effectiveness (RBE) of protons and carbon ions compared to photons offer unique and not fully understood or exploited opportunities to improve the efficacy of radiation therapy. Variations in RBE within a pristine or spread out Bragg peak and between particle types may be exploited to enhance cell killing in target regions without a corresponding increase in damage to normal tissue structures. In addition, the decreased sensitivity of hypoxic tumors to photon-based therapies may be partially overcome through the use of more densely ionizing radiations...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048478/th-b-204-01-real-time-tracking-with-implanted-markers
#6
Q Xu
: Implanted markers as target surrogates have been widely used for treatment verification, as they provide safe and reliable monitoring of the inter- and intra-fractional target motion. The rapid advancement of technology requires a critical review and recommendation for the usage of implanted surrogates in current field. The symposium, also reporting an update of AAPM TG 199 - Implanted Target Surrogates for Radiation Treatment Verification, will be focusing on all clinical aspects of using the implanted target surrogates for treatment verification and related issues...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048474/we-ab-202-01-evaluating-the-toxicity-reduction-with-ct-ventilation-functional-avoidance-radiation-therapy
#7
Y Vinogradskiy, Y Miyasaka, N Kadoya, R Castillo, E Castillo, T Guerrero, T Yamamoto
PURPOSE: CT-ventilation is an exciting new imaging modality that uses 4DCTs to calculate lung ventilation. Studies have proposed to use 4DCT-ventilation imaging for functional avoidance radiotherapy which implies designing treatment plans to spare functional portions of the lung. Although retrospective studies have been performed to evaluate the dosimetric gains to functional lung; no work has been done to translate the dosimetric gains to an improvement in pulmonary toxicity. The purpose of our work was to evaluate the potential reduction in toxicity for 4DCT-ventilation based functional avoidance...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048194/we-fg-brb-01-clinical-significance-of-rbe-variations-in-proton-therapy
#8
H Paganetti
: The physical pattern of energy deposition and the enhanced relative biological effectiveness (RBE) of protons and carbon ions compared to photons offer unique and not fully understood or exploited opportunities to improve the efficacy of radiation therapy. Variations in RBE within a pristine or spread out Bragg peak and between particle types may be exploited to enhance cell killing in target regions without a corresponding increase in damage to normal tissue structures. In addition, the decreased sensitivity of hypoxic tumors to photon-based therapies may be partially overcome through the use of more densely ionizing radiations...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048157/mo-d-brc-02-auto-planning
#9
P Xia
Treatment planning is a central part of radiation therapy, including delineation in tumor volumes and critical organs, setting treatment goals of prescription doses to the tumor targets and tolerance doses to the critical organs, and finally generation of treatment plans to meet the treatment goals. National groups like RTOG have led the effort to standardize treatment goals of the prescription doses to the tumor targets and tolerance doses to the critical organs based on accumulated knowledge from decades of abundant clinical trial experience...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048038/tu-d-bra-01-tps-commissioning-and-qa-planning-and-monitoring
#10
G Salomons
INTRODUCTION: Treatment planning systems (TPS) are a cornerstone of modern radiation therapy. Errors in their commissioning or use can have a devastating impact on many patients. To support safe and high quality care, medical physicists must conduct efficient and proper commissioning, good clinical integration, and ongoing quality assurance (QA) of the TPS. AAPM Task Group 53 and related publications have served as seminal benchmarks for TPS commissioning and QA over the past two decades...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047824/th-b-204-02-application-of-implanted-markers-in-proton-therapy
#11
S Park
: Implanted markers as target surrogates have been widely used for treatment verification, as they provide safe and reliable monitoring of the inter- and intra-fractional target motion. The rapid advancement of technology requires a critical review and recommendation for the usage of implanted surrogates in current field. The symposium, also reporting an update of AAPM TG 199 - Implanted Target Surrogates for Radiation Treatment Verification, will be focusing on all clinical aspects of using the implanted target surrogates for treatment verification and related issues...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047709/su-g-tep4-14-quality-control-of-treatment-planning-using-knowledge-based-planning-across-a-system-of-radiation-oncology-practices
#12
K Masi, M Ditman, R Marsh, J Dai, M Huberts, M Khadija, D Tatro, P Archer, M Matuszak
PURPOSE: There is potentially a wide variation in plan quality for a certain disease site, even for clinics located in the same system of hospitals. We have used a prostate-specific knowledge-based planning (KBP) model as a quality control tool to investigate the variation in prostate treatment planning across a network of affiliated radiation oncology departments. METHODS: A previously created KBP model was applied to 10 patients each from 4 community-based clinics (Clinics A, B, C, and D)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047670/su-f-p-20-predicting-waiting-times-in-radiation-oncology-using-machine-learning
#13
A Joseph, D Herrera, T Hijal, L Hendren, A Leung, J Wainberg, M Sawaf, M Gorshkov, R Maglieri, M Keshavarz, J Kildea
PURPOSE: Waiting times remain one of the most vexing patient satisfaction challenges facing healthcare. Waiting time uncertainty can cause patients, who are already sick or in pain, to worry about when they will receive the care they need. These waiting periods are often difficult for staff to predict and only rough estimates are typically provided based on personal experience. This level of uncertainty leaves most patients unable to plan their calendar, making the waiting experience uncomfortable, even painful...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047505/mo-d-brc-03-knowledge-based-planning
#14
Q Wu
Treatment planning is a central part of radiation therapy, including delineation in tumor volumes and critical organs, setting treatment goals of prescription doses to the tumor targets and tolerance doses to the critical organs, and finally generation of treatment plans to meet the treatment goals. National groups like RTOG have led the effort to standardize treatment goals of the prescription doses to the tumor targets and tolerance doses to the critical organs based on accumulated knowledge from decades of abundant clinical trial experience...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047455/su-f-j-39-dose-reduction-strategy-using-attenuation-based-tube-current-modulation-method-in-cbct-for-igrt
#15
K Son, H Lee, C Kim, J Kim, S Cho
PURPOSE: To reduce radiation dose to the patients, tube current modulation (TCM) method has been actively used in diagnostic CT systems. However, TCM method has not yet been applied to a kV-CBCT system on a LINAC machine. The purpose of this study is to investigate whether the use of TCM method is desirable in kV-CBCT system for IGRT. We have developed an attenuation-based tube current modulation (a-TCM) method using the prior knowledge of treatment CT image of a patient. METHODS: Patients go through a diagnostic CT scan for RT planning; therefore, using this prior information of CT images, one can estimate the total attenuation of an x-ray through the patient body in a CBCT setting for radiation therapy...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047373/tu-d-bra-02-recommendations-of-mppg-5-and-practical-implementation-strategies
#16
J Smilowitz
INTRODUCTION: Treatment planning systems (TPS) are a cornerstone of modern radiation therapy. Errors in their commissioning or use can have a devastating impact on many patients. To support safe and high quality care, medical physicists must conduct efficient and proper commissioning, good clinical integration, and ongoing quality assurance (QA) of the TPS. AAPM Task Group 53 and related publications have served as seminal benchmarks for TPS commissioning and QA over the past two decades...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046959/we-fg-brb-03-challenges-and-opportunities-for-implementing-biological-optimization-in-particle-therapy
#17
D Carlson
: The physical pattern of energy deposition and the enhanced relative biological effectiveness (RBE) of protons and carbon ions compared to photons offer unique and not fully understood or exploited opportunities to improve the efficacy of radiation therapy. Variations in RBE within a pristine or spread out Bragg peak and between particle types may be exploited to enhance cell killing in target regions without a corresponding increase in damage to normal tissue structures. In addition, the decreased sensitivity of hypoxic tumors to photon-based therapies may be partially overcome through the use of more densely ionizing radiations...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046819/su-f-j-11-radiobiologically-optimized-patient-localization-during-prostate-external-beam-localization
#18
Y Huang, S Gardner, C Liu, B Zhao, N Wen, S Brown, I Chetty
PURPOSE: To present a novel positioning strategy which optimizes radiation delivery with radiobiological response knowledge, and to evaluate its application during prostate external beam radiotherapy. METHODS: Ten patients with low or intermediate risk prostate cancer were evaluated retrospectively in this IRB-approved study. For each patient, a VMAT plan was generated on the planning CT (PCT) to deliver 78 Gy in 39 fractions with PTV = prostate + 7 mm margin, except for 5mm in the posterior direction...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046761/mo-g-201-01-a-multi-institutional-study-investigating-the-performance-of-a-knowledge-based-planning-system-against-pinnacle-auto-planning-engine-in-sib-imrt-for-the-head-and-neck-cancer
#19
B Wu, M Kusters, M Kunze-Busch, T Dijkema, T McNutt, G Sanguineti, D Pang
PURPOSE: Knowledge-based Planning (KBP) founded on prior planning experience and Auto-Planning Engine (APE; commercialized in Pinnacle v9.10 TPS) based on progressive optimization algorithm both aim to eliminate the trial-and-error process in radiotherapy inverse planning. This study investigates the performance of the approaches in a multi-institutional setting to evaluate their functionalities in oropharyngeal cancer and offers suggestions how they can be implemented in the clinic. METHODS: Radboud University Medical Center (RUMC) provided 35 oropharyngeal cancer patients (SIB-IMRT with two-dose-level prescription: 68 Gy to PTV68 and 50...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046751/mo-d-brc-00-in-memoriam-of-jan-van-de-geijn-knowledge-based-planning
#20
Ping Xia
Treatment planning is a central part of radiation therapy, including delineation in tumor volumes and critical organs, setting treatment goals of prescription doses to the tumor targets and tolerance doses to the critical organs, and finally generation of treatment plans to meet the treatment goals. National groups like RTOG have led the effort to standardize treatment goals of the prescription doses to the tumor targets and tolerance doses to the critical organs based on accumulated knowledge from decades of abundant clinical trial experience...
June 2016: Medical Physics
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