Motion correction in MRI of the brain.
Motion correction in MRI of the brain.
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DOI：
10.1088/0031-9155/61/5/r32
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发表时间：
2016-03-07
影响因子：
3.5
通讯作者：
Speck O
中科院分区：
文献类型：
--
作者：
Godenschweger F;Kägebein U;Stucht D;Yarach U;Sciarra A;Yakupov R;Lüsebrink F;Schulze P;Speck O
磁共振成像中的受试者运动是日常临床工作和科学研究中的一个相关问题。自从MRI开始临床应用以来，许多研究小组已经开发出抑制或纠正运动伪影的方法。本文就头部和脑MRI的刚体运动校正及其在诊断和研究中的应用作一综述。它解释了运动和相关伪影的来源和类型，对现有的运动检测、补偿和校正技术进行了分类和描述，并列出了已建立的和实验的方法。回溯性运动校正在重建期间修改MR图像数据，而预期运动校正执行数据采集的自适应更新。讨论了不同运动校正方法的区别和优缺点。
Subject motion in MRI is a relevant problem in the daily clinical routine as well as in scientific studies. Since the beginning of clinical use of MRI, many research groups have developed methods to suppress or correct motion artefacts. This review focuses on rigid body motion correction of head and brain MRI and its application in diagnosis and research. It explains the sources and types of motion and related artefacts, classifies and describes existing techniques for motion detection, compensation and correction and lists established and experimental approaches. Retrospective motion correction modifies the MR image data during the reconstruction, while prospective motion correction performs an adaptive update of the data acquisition. Differences, benefits and drawbacks of different motion correction methods are discussed.