Recognizing the potential of quantitative imaging biomarkers (QIBs) in radiotherapy, many studies have investigated the prognostic value of quantitative MRI (qMRI). With the introduction of MRI-guided radiotherapy systems, the practical challenges of repeated imaging have been substantially reduced. Since patients are treated inside an MRI scanner, acquisition of qMRI can be done during each fraction with limited or no prolongation of the fraction duration. In this review paper, we identify the steps that need been taken to move from MR as an imaging technique to a useful biomarker for MRI-guided radiotherapy (MRgRT).

中文翻译：

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MR-Linacs 上的定量 MRI：迈向生物图像引导自适应放射治疗

认识到定量成像生物标志物 (QIB) 在放射治疗中的潜力，许多研究调查了定量 MRI (qMRI) 的预后价值。随着 MRI 引导的放射治疗系统的引入，重复成像的实际挑战已大大减少。由于患者在 MRI 扫描仪内接受治疗，因此可以在每次分次期间进行 qMRI 采集，并且分次持续时间有限或不延长。在这篇综述论文中，我们确定了从 MR 作为一种成像技术转变为 MRI 引导放疗的有用生物标志物 (MRgRT ）。