Magnetic Resonance Imaging only Workflow for Radiotherapy Simulation and Planning in Prostate Cancer
Magnetic Resonance Imaging only Workflow for Radiotherapy Simulation and Planning in Prostate Cancer
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DOI：
10.1016/j.clon.2018.08.009
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发表时间：
2018-11-01
影响因子：
3.4
通讯作者：
van den Berg, C. A. T.
中科院分区：
文献类型：
--
作者：
Kerkmeijer, L. G. W.;Maspero, M.;van den Berg, C. A. T.
在前列腺放疗中，磁共振成像（MRI）通常与计算机断层扫描（CT）相结合，以优化靶和危险器官（OAR）的描绘，同时保持准确的剂量计算。这样的双模态工作流程需要两个单独的成像会话，并且它具有一些基本的和后勤的缺点。由于新的MRI硬件和软件解决方案的可用性，前列腺放射治疗模拟可以省略CT检查。治疗计划的所有信息，包括电子密度图和骨解剖结构，现在都可以通过MRI获得。这种仅MRI模拟工作流程减少了描绘模糊性，简化了规划物流，并提高了患者舒适度;然而，需要仔细验证完整的仅MRI工作流程。第一个研究所现在正在采用这种仅用于前列腺放射治疗的MRI工作流程。在这篇文章中，我们将审查的技术和工作流程要求的MRI只有前列腺模拟工作流程。(C)2018年皇家放射科医师学院。由爱思唯尔有限公司出版。保留所有权利。
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.