Results 101 to 110 of about 7,906 (146)
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Sci-Thur PM: YIS - 03: Comparing 4D-VMAT, Gated-VMAT and 3D-VMAT in SBRT treatment of lung cancer
Medical Physics, 2012To evaluate the treatment plan qualities of 4D-VMAT, gated-VMAT and 3D-VMAT in the treatment of non-small cell lung cancer (NSCLC) in stereotactic body radiation therapy (SBRT).4D-VMAT is a motion compensation strategy that aims to exploit relative target and OAR motion to increase OAR sparing over 3D-VMAT without the long treatment times associated ...
E, Chin, S, Loewen, A, Nichol, K, Otto
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An empirical method for splitting arcs in VMAT
Physica Medica, 2021We present a new approach to determine the optimal arc split for VMAT beams which is an extension of our recently published algorithm for selecting optimal beam angles in Intensity Modulated Radiation Therapy (IMRT) MATERIAL AND METHODS: The proposed approach uses an objective function based scoring method called "ψ - score" to determine optimal arc ...
Bojarajan, Perumal +6 more
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Online adaptation and verification of VMAT
Medical Physics, 2015Purpose:This work presents a method for fast volumetric modulated arc therapy (VMAT) adaptation in response to interfraction anatomical variations. Additionally, plan parameters extracted from the adapted plans are used to verify the quality of these plans.
Wouter, Crijns +6 more
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Medical Dosimetry, 2020
This is the first study that compared treatment plan quality and planning efficiency for lung stereotactic body radiation therapy (SBRT) using CyberKnife (CK) Multiplan vs Varian Eclipse treatment planning systems, including volumetric modulated arc therapy (VMAT) and knowledge-based VMAT (KBP-VMAT). Thirteen lung SBRT patients treated with 50 to 55 Gy
Ulrich Langner +2 more
exaly +3 more sources
This is the first study that compared treatment plan quality and planning efficiency for lung stereotactic body radiation therapy (SBRT) using CyberKnife (CK) Multiplan vs Varian Eclipse treatment planning systems, including volumetric modulated arc therapy (VMAT) and knowledge-based VMAT (KBP-VMAT). Thirteen lung SBRT patients treated with 50 to 55 Gy
Ulrich Langner +2 more
exaly +3 more sources
VMAT plus a few computer-optimized non-coplanar IMRT beams (VMAT+) tested for liver SBRT
Radiotherapy and Oncology, 2017To propose a novel treatment approach, designated VMAT+, involving addition of
Sebastiaan Breedveld +2 more
exaly +3 more sources
Dose rate mapping of VMAT treatments
Physics in Medicine and Biology, 2016Human tissues exhibit a varying response to radiation dose depending on the dose rate and fractionation scheme used. Dose rate effects have been reported for different radiations, and tissue types. The literature indicates that there is not a significant difference in response for low-LET radiation when using dose rates between 1 Gy min(-1) and 12 Gy ...
Podesta, Mark +2 more
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Dose Verification in IMRT and VMAT
AIP Conference Proceedings, 2011This is a review paper of the current IMRT dosimetric verification methods, with the emphasis on the solid state dosimeters. Different types of IMRT treatments and the associated quality assurance challenges are described. The prevailing techniques of quantifying dosimetric agreement and their weaknesses in terms of clinical relevance are discussed.
Vladimir Feygelman +5 more
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Plan Evaluation in IMRT and VMAT
2019The evaluation of a radiation plan is an essential task for the radiation oncologist, which has become more complex due to intensity-modulated radiation therapy (IMRT). Multiple factors must be evaluated before approval of final IMRT plan. This chapter describes the practical approach to IMRT treatment planning and evaluation from a radiation ...
Sandeep Muzumder, M. G. John Sebastian
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