Dose Verification for Respiratory-gated VMAT-SBRT Using Real-time Tumor Tracking System
نویسندگان
چکیده
منابع مشابه
Development of real‐time motion verification system using in‐room optical images for respiratory‐gated radiotherapy
Phase-based respiratory-gated radiotherapy relies on the reproducibility of patient breathing during the treatment. To monitor the positional reproducibility of patient breathing against a 4D CT simulation, we developed a real-time motion verification system (RMVS) using an optical tracking technology. The system in the treatment room was integrated with a real-time position management system. ...
متن کاملSU-E-J-166: Development of Real-Time Motion Verification System for Respiratory-Gated Radiotherapy.
PURPOSE To develop an on-line quality assurance tool for RPM (real-time position management system, Varian Medical Systems, Palo Alto, CA) phase-based gated radiotherapy. METHODS A real-time motion verification system (RMVS) was developed to verify the positional reproducibility of patient breathing between CT simulation and treatment. Phase-resolved anterior body midlines were extracted from...
متن کاملReal-time tumor tracking during VMAT radiotherapy treatments based on 2D/3D registration using CBCT projections
Rotational radiotherapy treatments such as volumetric modulated arc therapy (VMAT) can have superior overall quality while having shorter delivery time with respect to conventional intensity modulated radiotherapy (IMRT). As with conventional treatments, intrafractional tumor motion is a major source of uncertainty in dose application. To ensure full tumor coverage the planning target volume (P...
متن کاملWE-G-213CD-03: A Dual Complementary Verification Method for Dynamic Tumor Tracking on Vero SBRT.
PURPOSE to use complementary cine EPID and gimbals log file analysis for in-vivo tracking accuracy monitoring. METHODS A clinical prototype of dynamic tracking (DT) was installed on the Vero SBRT system. This prototype version allowed tumor tracking by gimballed linac rotations using an internal-external correspondence model. The DT prototype software allowed the detailed logging of all appli...
متن کاملExperimentally studied dynamic dose interplay does not meaningfully affect target dose in VMAT SBRT lung treatments.
PURPOSE The effects of respiratory motion on the tumor dose can be divided into the gradient and interplay effects. While the interplay effect is likely to average out over a large number of fractions, it may play a role in hypofractionated [stereotactic body radiation therapy (SBRT)] treatments. This subject has been extensively studied for intensity modulated radiation therapy but less so for...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 2020
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.2020_jjrt_76.7.674