Online adaptive planning for prostate stereotactic body radiotherapy using a 1.5 Tesla magnetic resonance imaging-guided linear accelerator

Autor:	Jinzhong Yang, Sastry Vedam, Belinda Lee, Pamela Castillo, Angela Sobremonte, Neil Hughes, Mustefa Mohammedsaid, Jihong Wang, Seungtaek Choi
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	MR-Linac MRgRT Prostate SBRT Medical physics. Medical radiology. Nuclear medicine R895-920 Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282
Zdroj:	Physics and Imaging in Radiation Oncology, Vol 17, Iss , Pp 20-24 (2021)
Druh dokumentu:	article
ISSN:	2405-6316 67940099
DOI:	10.1016/j.phro.2020.12.001
Popis:	Recent advances in integrating 1.5 Tesla magnetic resonance (MR) imaging with a linear accelerator (MR-Linac) allow MR-guided stereotactic body radiotherapy (SBRT) for prostate cancer. Choosing an optimal strategy for daily online plan adaptation is particularly important for MR-guided radiotherapy. We analyzed deformable dose accumulation on scans from four patients and found that daily anatomy changes had little impact on the delivered dose, with the dose to the prostate within 0.5% and dose to the rectum/bladder mostly less than 0.5 Gy. These findings could help in the choice of an optimal strategy for online plan adaptation for MR-guided prostate SBRT.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/44436f83c67940099d02c230afca62c4 Zobrazit plný text záznamu View record in DOAJ