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https://www.readbyqxmd.com/read/28048884/th-ef-204-02-small-field-radiation-therapy-physics-and-recent-recommendations-from-iaea-and-icru
#1
J Seuntjens
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048471/su-g-jep3-03-effect-of-robot-pose-on-beam-blocking-for-ultrasound-guided-sbrt-of-the-prostate
#2
S Gerlach, I Kuhlemann, F Ernst, C Fuerweger, A Schlaefer
PURPOSE: Ultrasound presents a fast, volumetric image modality for real-time tracking of abdominal organ motion. How-ever, ultrasound transducer placement during radiation therapy is challenging. Recently, approaches using robotic arms for intra-treatment ultrasound imaging have been proposed. Good and reliable imaging requires placing the transducer close to the PTV. We studied the effect of a seven degrees of freedom robot on the fea-sible beam directions. METHODS: For five CyberKnife prostate treatment plans we established viewports for the transducer, i...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048463/th-c-brc-02-a-review-of-emerging-technologies-in-robotic-srs-sbrt-delivery
#3
L Wang
: The delivery techniques for SRS/SBRT have been under rapid developments in recent years, which pose new challenges to medical physicists ranging from planning and quality assurance to imaging and motion management. This educational course will provide a general overview of the latest delivery techniques in SRS/SBRT, and discuss the clinical processes to address the challenges of each technique with special emphasis on dedicated gamma-ray based device, robotic x-band linac-based system and conventional C-arm s-band linac-based SRS systems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048402/su-f-t-569-implementation-of-a-patient-specific-qa-method-using-ebt-xd-for-cyberknife-srs-sbrt-plans
#4
K Zerouali, J Aubry, R Doucet
PURPOSE: To implement the new EBT-XD Gafchromic films for accurate dosimetric and geometric validation of stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT) CyberKnife (CK) patient specific QA. METHODS: Film calibration was performed using a triplechannel film analysis on an Epson 10000XL scanner. Calibration films were irradiated using a Varian Clinac 21EX flattened beam (0 to 20 Gy), to ensure sufficient dose homogeneity. Films were scanned to a resolution of 0...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048317/su-f-t-576-characterization-of-two-dimensional-liquid-filled-detector-array-srs-1000-in-high-precision-cyberknife-robotic-radiosurgery-system
#5
M Muthukumaran, D Manigandan, V Murali, S Vikraman, S Chitra, K Ganapathy
PURPOSE: The aim of the study is to characterize a two dimensional liquid filled detector array SRS 1000 for routine QA in Cyberknife Robotic Radiosurgery system. METHODS: SRS 1000 consists of 977 liquid filled ionization chambers and is designed to be used in small field SRS/SBRT techniques. The detector array has got two different spacial resolutions. Till field size of 5.5×5.5 cm the spacial resolution is 2.5mm (center to center) and after that till field size of 11 × 11 cm the spacial resolution is 5mm...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048315/su-f-t-650-the-comparison-of-robotic-partial-breast-stereotactic-irradiation-using-mlc-vs-iris-cone
#6
C Ding, R Timmerman, S Jiang, A Rahimi
PURPOSE: To evaluate the dosimetric impact on treatment planning for partial breast stereotactic irradiation using Cyberknife with MLC versus Iris Cone. METHODS: Ten patients whom underwent lumpectomy for DCIS or stage I invasive non-lobular epithelial breast cancer were included in this study. All patients were previously treated on the Cyberknife using Iris cone with the prescription dose of 37.5Gy in 5 fractions covering at least 95% of PTV on our phase I SBRT 5 fraction partial breast irradiation trial...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048231/th-ef-204-03-determination-of-small-field-output-factors-advantages-and-limitations-of-monte-carlo-simulation
#7
J Puxeu Vaque
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047808/th-c-brc-03-emerging-linac-based-srs-sbrt-technologies-with-modulated-arc-delivery
#8
L Ren
: The delivery techniques for SRS/SBRT have been under rapid developments in recent years, which pose new challenges to medical physicists ranging from planning and quality assurance to imaging and motion management. This educational course will provide a general overview of the latest delivery techniques in SRS/SBRT, and discuss the clinical processes to address the challenges of each technique with special emphasis on dedicated gamma-ray based device, robotic x-band linac-based system and conventional C-arm s-band linac-based SRS systems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047703/su-f-p-31-dosimetric-effects-of-roll-and-pitch-corrections-using-robotic-table
#9
M Mamalui, Z Su, S Flampouri, Z Li
PURPOSE: To quantify the dosimetric effect of roll and pitch corrections being performed by two types of robotic tables available at our institution: BrainLabTM 5DOF robotic table installed at VERO (BrainLab&MHI) dedicated SBRT linear accelerator and 6DOF robotic couch by IBA Proton Therapy with QFixTM couch top. METHODS: Planning study used a thorax phantom (CIRSTM), scanned at 4DCT protocol; targets (IGTV, PTV) were determined according to the institutional lung site-specific standards...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047583/th-ef-204-04-experience-of-imrt-and-other-conformal-techniques-in-russia
#10
T Krylova
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047473/th-ef-204-00-aapm-ampr-russia-sefm-spain-joint-course-on-challenges-and-advantages-of-small-field-radiation-treatment-techniques
#11
Joanna Cygler
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047049/th-c-brc-00-emerging-technologies-in-srs-sbrt-delivery
#12
Lei Ren
: The delivery techniques for SRS/SBRT have been under rapid developments in recent years, which pose new challenges to medical physicists ranging from planning and quality assurance to imaging and motion management. This educational course will provide a general overview of the latest delivery techniques in SRS/SBRT, and discuss the clinical processes to address the challenges of each technique with special emphasis on dedicated gamma-ray based device, robotic x-band linac-based system and conventional C-arm s-band linac-based SRS systems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046934/th-ef-204-05-application-of-small-field-treatment-the-promises-and-pitfalls-of-sbrt
#13
E Ford
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046818/th-ef-204-01-introduction
#14
J Cygler
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046393/th-c-brc-01-an-overview-of-emerging-technologies-in-srs-sbrt-delivery
#15
L Ma
: The delivery techniques for SRS/SBRT have been under rapid developments in recent years, which pose new challenges to medical physicists ranging from planning and quality assurance to imaging and motion management. This educational course will provide a general overview of the latest delivery techniques in SRS/SBRT, and discuss the clinical processes to address the challenges of each technique with special emphasis on dedicated gamma-ray based device, robotic x-band linac-based system and conventional C-arm s-band linac-based SRS systems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046278/th-ef-204-06-closing
#16
C Borras
: Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046265/su-f-t-546-a-radiobiological-comparative-study-of-robotic-and-linac-based-lung-sbrt
#17
T Roth, L Rankine, E Schreiber, S Das, P Mavroidis
PURPOSE: To expand the dosimetric comparison of CyberKnife and Elekta Versa HD regarding their capability to perform SBRT in lung cases by including radiobiological measures, which can estimate the clinical impact of the observed differences. METHODS: This study analyzes treatment data of 10 patients, who were treated with SBRT on Elekta Versa HD and replanned using CyberKnife. The original structure sets from the RayStation treatment plans were transferred to MultiPlan and were used for planning, with the exception of the PTV...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046239/su-f-t-575-verification-of-a-monte-carlo-small-field-srs-sbrt-dose-calculation-system
#18
A Sudhyadhom, C McGuinness, M Descovich
PURPOSE: To develop a methodology for validation of a Monte-Carlo dose calculation model for robotic small field SRS/SBRT deliveries. METHODS: In a robotic treatment planning system, a Monte-Carlo model was iteratively optimized to match with beam data. A two-part analysis was developed to verify this model. 1) The Monte-Carlo model was validated in a simulated water phantom versus a Ray-Tracing calculation on a single beam collimator-by-collimator calculation. 2) The Monte-Carlo model was validated to be accurate in the most challenging situation, lung, by acquiring in-phantom measurements...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27929514/evaluation-of-kidney-motion-and-target-localization-in-abdominal-sbrt-patients
#19
Marcus Sonier, William Chu, Nafisha Lalani, Darby Erler, Patrick Cheung, Renee Korol
The purpose of this study was to evaluate bilateral kidney and target translational/rotational intrafraction motion during stereotactic body radiation therapy treatment delivery of primary renal cell carcinoma and oligometastatic adrenal lesions for patients immobilized in the Elekta BodyFIX system. Bilateral kidney motion was assessed at midplane for 30 patients immobilized in a full-body dual-vacuum-cushion system with two patients immobilized via abdominal compression. Intrafraction motion was assessed for 15 patients using kilovoltage cone-beam computed tomography (kV-CBCT) datasets (n = 151) correlated to the planning CT...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27897235/stereotactic-body-radiation-therapy-induces-fast-tumor-control-and-symptom-relief-in-patients-with-iliac-lymph-node-metastasis
#20
Zhongqiu Wang, Jing Wang, Hongqing Zhuang, Ping Wang, Zhiyong Yuan
The CyberKnife is a robotic stereotactic body radiotherapy (SBRT) system which has shown promising results for many malignances with good efficacy and low toxicity. This study aims to evaluate the response and local control (LC) obtained with CyberKnife in the management of iliac lymph node metastases (ILNM). Twenty-two patients with 27 ILNM were treated by CyberKnife from May 2010 to May 2016. Median follow-up time was 33 months (8-97). The complete response, partial response, stable disease and progression disease rates were 37...
November 29, 2016: Scientific Reports
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