Effective Control Of Brain Metastases Irrespective Of Distance From Isocenter In Single-Isocenter Multitarget Stereotactic Radiosurgery

Ken Aoki,Yukihiro Nagatani,Kazuo Noma,Takuya Tsugawa, Naoaki Kono,Yukako Kida, Naoki Harada, Yoshihide Tanoue,Yoshiyuki Watanabe

ANTICANCER RESEARCH（2021）

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摘要

Background/Aim: Few previous studies have evaluated the effectiveness of single-isocenter multitarget (SIMT) stereotactic radiosurgery (SRS) in clinical practice. Patients and Methods: Gross tumor volumes of 113 metastases in 13 patients were measured by contrast enhanced magnetic resonance imaging. Prescribed doses were set at 20-24 Gy. Based on tumor reduction rates (TRRs) measured before and after SIMT SRS, tumor shrinkage effect was categorized into four grades; almost disappeared: TRR=1, decreased: 0.3 <= TRR<1, stable: -0.2更多

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关键词

Single-isocenter, stereotactic radiosurgery, dynamic conformal arc, tumor quantification, lung cancer, brain metastasis, contrast-enhanced magnetic resonance imaging

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