Dosimetric comparison of MR-guided adaptive IMRT versus 3DOF-VMAT for prostate stereotactic radiotherapy.

Vickie C Kong,Jennifer Dang,Winnie Li,Inmaculada Navarro,Jerusha Padayachee,Victor Malkov,Jeff Winter,Srinivas Raman,Alejandro Berlin,Charles Catton,Padraig Warde,Peter Chung

Technical innovations & patient support in radiation oncology（2022）

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摘要

Despite the presence of large interfraction organ volumes changes, clinically acceptable dose was delivered to the prostate by both systems. A-IMRT facilitated a greater rectal sparing from the high dose region than 3DOF-VMAT. Further reduction in rectal dose could be achieved by hydrogel spacer to displace the rectum, or by adaptation delivered by VMAT.

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关键词

IMRT,MR-guided adaptive radiotherapy,Prostate SBRT,VMAT

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