P05.29 Improvement of stereotactic radiosurgery plan quality with multiple non-coplanar VMAT beams
نویسندگان
چکیده
منابع مشابه
Plan Quality and Treatment Efficiency for Radiosurgery to Multiple Brain Metastases: Non-Coplanar RapidArc vs. Gamma Knife
OBJECTIVES This study compares the dosimetry and efficiency of two modern radiosurgery [stereotactic radiosurgery (SRS)] modalities for multiple brain metastases [Gamma Knife (GK) and LINAC-based RapidArc/volumetric modulated arc therapy], with a special focus on the comparison of low-dose spread. METHODS Six patients with three or four small brain metastases were used in this study. The size...
متن کاملOptimization Algorithm for Single-Isocenter VMAT Stereotactic Radiosurgery for Multiple Brain Metastases
Objectives: Developing an optimal Stereotactic radiosurgery (SRS) plan for multiple brain metastases can be a labor intensive process. Single-isocenter multi-arc volumetrically modulated arc therapy (VMAT) has been used as an SRS technique, in which a Linear Accelerator (Linac) delivers targeted radiation along multiple arc angles as it rotates around the isocenter. Standardized arc angles with...
متن کاملHyperArc VMAT planning for single and multiple brain metastases stereotactic radiosurgery: a new treatment planning approach
PURPOSE The HyperArc VMAT (HA-VMAT) planning approach was newly developed to fulfill the demands of dose delivery for brain metastases stereotactic radiosurgery. We compared the dosimetric parameters of the HA-VMAT plan with those of the conventional VMAT (C-VMAT). MATERIAL AND METHODS For 23 patients (1-4 brain metastases), C-VMAT and HA-VMAT plans with a prescription dose of 20-24 Gy were r...
متن کاملComparison of IMRT and VMAT Techniques in Spine Stereotactic Radiosurgery with International Spine Radiosurgery Consortium Consensus Guidelines
145 This work has supported by the Yeungnam University Academic Research Fund (210A054024). Submitted August, 13, 2013, Accepted September, 6, 2013 Corresponding Author: Ji Woon Yea, Department of Radiation Oncology, Yeungnam University Medical Center, 317-1, Daemeyoungdong, Nam-gu, Daegu 705-717, Korea Tel: 053)620-3371, Fax: 053)624-3599 E-mail: [email protected] Comparison of IMRT and VMAT T...
متن کاملStereotactic Radiosurgery/Radiotherapy: A Historical Review
"Stereotactic" is an exact radiotherapy treatment modality which implements invasive and non-invasive facilities for improving precise dose delivery. Stereotactic refers to three-dimensional localization of a specific point in space by a unique set of coordinates that relate to a fixed external reference frame. An accurate delivery of radiation is attainable using these techniques with high pre...
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ژورنال
عنوان ژورنال: Neuro-Oncology
سال: 2018
ISSN: 1522-8517,1523-5866
DOI: 10.1093/neuonc/noy139.355