Principles and applications of echo-planar imaging: A review for the general radiologist
Principles and applications of echo-planar imaging: A review for the general radiologist
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DOI：
10.1148/radiographics.21.3.g01ma23767
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发表时间：
2001-05-01
期刊：
影响因子：
5.5
通讯作者：
Li, T
中科院分区：
文献类型：
--
作者：
Poustchi-Amin, M;Mirowitz, SA;Li, T
回波平面成像是一种非常快速的磁共振 (MR) 成像技术，能够在不到一秒的时间内获取整个 MR 图像。在单次回波平面成像中，在单次射频激励后可以获得图像的所有空间编码数据。多镜头回波平面成像可产生与传统 MR 图像相当的高质量图像。然而，平面回波成像比传统 MR 成像具有主要优势，包括缩短成像时间、减少运动伪影以及能够对人体快速生理过程进行成像。平面回波成像的使用已经在临床诊断和科学研究方面取得了重大进展，例如分别在中风评估和人脑功能成像方面取得了重大进展。平面回波成像的临床适应症正在迅速扩大，现在可以应用于身体的许多部位，包括大脑、腹部和心脏。如今，随着许多地点都配备了具有平面回波成像功能的 MR 成像仪，普通放射科医生可以从平面回波成像及其临床应用中受益。
Echo-planar imaging is a very fast magnetic resonance (MR) imaging technique capable of acquiring an entire MR image in only a fraction of a second. In single-shot echo-planar imaging, all the spatial-encoding data of an image can be obtained after a single radio-frequency excitation. Multishot echo-planar imaging results in high-quality images comparable to conventional MR images. However, echo-planar imaging offers major advantages over conventional MR imaging, including reduced imaging time, decreased motion artifact, and the ability to image rapid physiologic processes of the human body. The use of echo-planar imaging has already resulted in significant advances in clinical diagnosis and scientific investigation, such as in evaluation of stroke and functional imaging of the human brain, respectively. The clinical indications for echo-planar imaging are expanding rapidly, and it can now be applied to many parts of the body, including the brain, abdomen, and heart. Today, with the availability of echo-planar imaging-capable MR imagers at many sites, the general radiologist can benefit from echo-planar imaging and its clinical applications.