Radiotherapy planning using MRI.
Radiotherapy planning using MRI.
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DOI：
10.1088/0031-9155/60/22/r323
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发表时间：
2015-11-21
影响因子：
3.5
通讯作者：
Payne GS
中科院分区：
文献类型：
--
作者：
Schmidt MA;Payne GS
磁共振成像 (MRI) 在放射治疗 (RT) 计划中的应用正在迅速扩大。我们回顾了 MRI 可用的各种图像对比机制以及它们用于 RT 规划的方式。然而，还考虑了许多挑战：在 RT 治疗位置获取 MR 图像的要求、它们在几何上准确、扫描期间患者运动的影响最小化、组织标记清晰显示、可以获得电子密度的估计。在考虑一些具体的临床应用之前，将详细讨论这些问题。接下来简要讨论实时 MRI 引导 RT 的发展。
The use of Magnetic Resonance Imaging (MRI) in Radiotherapy (RT) planning is rapidly expanding. We review the wide range of image contrast mechanisms available to MRI and the way they are exploited for RT planning. However a number of challenges are also considered: the requirements that MR images are acquired in the RT treatment position, that they are geometrically accurate, that effects of patient motion during the scan are minimised, that tissue markers are clearly demonstrated, that an estimate of electron density can be obtained. These issues are discussed in detail, prior to the consideration of a number of specific clinical applications. This is followed by a brief discussion on the development of real-time MRI-guided RT.