Clinical application of real-time tumor-tracking for stereotactic volumetric modulated arc therapy for liver tumors

被引：0
|
作者：
Miyamoto, Naoki [1 ,2 ]
Katoh, Norio [3 ]
Kanehira, Takahiro [2 ]
Yokokawa, Kohei [2 ]
Suzuki, Ryusuke [2 ]
Uchinami, Yusuke [3 ]
Taguchi, Hiroshi [4 ]
Abo, Daisuke [5 ]
Aoyama, Hidefumi [3 ]
机构：
[1] Hokkaido Univ, Fac Engn, North13,West 8,Kita Ku, Sapporo, Hokkaido 0608628, Japan
[2] Hokkaido Univ Hosp, Dept Med Phys, North 14,West 5,Kita Ku, Sapporo, Hokkaido 0608648, Japan
[3] Hokkaido Univ, Fac Med, North 15,West 7,Kita Ku, Sapporo, Hokkaido 0608638, Japan
[4] Hokkaido Univ Hosp, Dept Radiat Oncol, North 14,West 5,Kita Ku, Sapporo, Hokkaido 0608648, Japan
[5] Hokkaido Univ Hosp, Dept Diagnost & Intervent Radiol, North 14 West 5,Kita Ku, Sapporo, Hokkaido 0608648, Japan
来源：
PHYSICS & IMAGING IN RADIATION ONCOLOGY | 2024年 / 31卷
关键词：
Motion management; SBRT; VMAT; Internal marker; Respiratory gating; FIDUCIAL MARKERS; GATED VMAT; RADIOTHERAPY; MOTION;
D O I：
10.1016/j.phro.2024.100623
中图分类号：
R73 [肿瘤学];
学科分类号：
100214 ;
摘要：
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.
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页数：4
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