1. Clinical application of real-time tumor-tracking for stereotactic volumetric modulated arc therapy for liver tumors
- Author
-
Naoki Miyamoto, Norio Katoh, Takahiro Kanehira, Kohei Yokokawa, Ryusuke Suzuki, Yusuke Uchinami, Hiroshi Taguchi, Daisuke Abo, and Hidefumi Aoyama
- Subjects
Motion management ,SBRT ,VMAT ,Internal marker ,Respiratory gating ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Real-time tumor-tracking volumetric modulated arc therapy (RT-VMAT) enabling beam-gating based on continuous X-ray tracking of the three-dimensional position of internal markers is relevant for moving tumors. Dose-volume characteristics and treatment time were evaluated in ten consecutive patients who underwent liver stereotactic body radiation therapy with RT-VMAT. Target dose conformity and sparing of the stomach and the intestine were improved comparing RT-VMAT with RT-3D conformal radiotherapy. The mean treatment time for each fraction was less than 10 min. RT-VMAT could be effective, especially for targets located adjacent to organs at risk.
- Published
- 2024
- Full Text
- View/download PDF