摘要
周期性旋转重叠平行线采集和增强后处理重建(PROPELLER)技术是磁共振成像中一种能减少运动伪影的崭新数据采集和重建方法。该方法同时具有K空间中心部分过采样和获取人体组织内在“导航波”信息的优势,它能纠正受检对象层面内平移和旋转引起的运动伪影,以及部分层面间的运动伪影。本文就PROPELLER技术的基本原理、研究进展及临床应用进行综述。
PROPELLER（ periodically rotated overlapping parallel lines with enhanced reconstruction） technique is a new method of data collection and reconstruction for reducing motion artifact. It has the advantages of oversampling at the center of K-space and obtaining inherent ＇navigator＇ information, which permits artifacts correction for in-plane translation and rotation, and through-plane motion. This article reviews the principle, research progress and clinic applications of PROPELLER technique.
出处
《医学影像学杂志》
2005年第10期912-915,共4页
Journal of Medical Imaging
关键词
螺旋桨技术
运动伪影
校正
K-空间
磁共振成像
PROPELLER technique
Motion artifact
Correction
K-space
Magnetic resonance imaging
