期刊
CLINICAL ONCOLOGY
卷 30, 期 11, 页码 692-701出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.clon.2018.08.009
关键词
Dose calculation; image-guided radiotherapy; magnetic resonance imaging; MRI-only radiotherapy; position verification; prostate cancer
类别
资金
- ZonMw within the Innovative Medical Devices Initiative (IMDI) Programme [1040030]
- MRI-linac Consortium institutes
Magnetic resonance imaging (MRI) is often combined with computed tomography (CT) in prostate radiotherapy to optimise delineation of the target and organs-at-risk (OAR) while maintaining accurate dose calculation. Such a dual-modality workflow requires two separate imaging sessions, and it has some fundamental and logistical drawbacks. Due to the availability of new MRI hardware and software solutions, CT examinations can be omitted for prostate radiotherapy simulations. All information for treatment planning, including electron density maps and bony anatomy, can nowadays be obtained with MRI. Such an MRI-only simulation workflow reduces delineation ambiguities, eases planning logistics, and improves patient comfort; however, careful validation of the complete MRI-only workflow is warranted. The first institutes are now adopting this MRI-only workflow for prostate radiotherapy. In this article, we will review technology and workflow requirements for an MRI-only prostate simulation workflow. (C) 2018 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.
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