van Heeswijk Ruud B, Bonanno Gabriele, Coppo Simone, Coristine Andrew, Kober Tobias, Stuber Matthias
Department of Radiology, University of Lausanne, Lausanne, Switzerland.
Crit Rev Biomed Eng. 2012;40(2):99-119. doi: 10.1615/critrevbiomedeng.v40.i2.20.
Image quality in magnetic resonance imaging (MRI) is considerably affected by motion. Therefore, motion is one of the most common sources of artifacts in contemporary cardiovascular MRI. Such artifacts in turn may easily lead to misinterpretations in the images and a subsequent loss in diagnostic quality. Hence, there is considerable research interest in strategies that help to overcome these limitations at minimal cost in time, spatial resolution, temporal resolution, and signal-to-noise ratio. This review summarizes and discusses the three principal sources of motion: the beating heart, the breathing lungs, and bulk patient movement. This is followed by a comprehensive overview of commonly used compensation strategies for these different types of motion. Finally, a summary and an outlook are provided.
磁共振成像（MRI）中的图像质量会受到运动的显著影响。因此，运动是当代心血管MRI中最常见的伪影来源之一。这些伪影反过来可能很容易导致图像解读错误，并进而导致诊断质量下降。因此，人们对能够以最小的时间、空间分辨率、时间分辨率和信噪比代价克服这些限制的策略有着浓厚的研究兴趣。本综述总结并讨论了运动的三个主要来源：跳动的心脏、呼吸的肺部和患者的整体运动。随后对针对这些不同类型运动的常用补偿策略进行了全面概述。最后给出了总结和展望。
