磁共振常见伪影的产生原因及去除

Causes and removal of common artifacts in magnetic resonance imaging

目的:探讨研究PHILIPS1.5T磁共振常见伪影的产生原因及去除。方法:回顾性分析自2015年6月—2017年3月以来收集我院具有不同程度伪影的330例患者MR图像资料,分析研究MRI检查几种常见伪影的产生原因以及抑制方法。结果:将伪影归纳为图像处理相关伪影、硬件相关的伪影、患者相关的伪影、环境相关的伪影、操作相关的伪影,并分析产生原因及解决方法。结论:了解磁共振图像伪影的产生原因和解决方法,对改善图像质量、提高诊断率具有重要意义。

Objective To investigate the causes and removal of artifacts in 1.5 T MRI. Methods We methods the data of MR images of 57 patients with different degrees of artifact in our hospital from June 2015 to March 2017 were retrospectively analyzed, and the causes and methods of MRI imaging were analyzed. Results The artifacts are classified into image processing artifacts, hardware related artifacts, patient related artifacts, environmental related artifacts, and related artifacts.Conclusion It is of great significance to improve the image quality and to improve the diagnostic accuracy of MRI artifacts.