Imaging heart motion using harmonic phase MRI

被引：318
作者：
Osman, NF
McVeigh, ER
Prince, JL [1 ]
机构：
[1] Johns Hopkins Univ, Dept Biomed Engn, Baltimore, MD 21218 USA
[2] Johns Hopkins Univ, Dept Elect & Comp Engn, Ctr Imaging Sci, Baltimore, MD 21218 USA
来源：
IEEE TRANSACTIONS ON MEDICAL IMAGING | 2000年 / 19卷 / 03期
关键词：
image processing; motion estimation; MR tagging; MRI;
D O I：
10.1109/42.845177
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This paper describes a new image processing technique for rapid analysis and visualization of tagged cardiac magnetic resonance (MR) images. The method is based on the use of isolated spectral peaks in spatial modulation of magnetization (SPAMM)-tagged magnetic resonance images. We call the calculated angle of the complex image corresponding to one of these peaks a harmonic phase (HARP) image and show that HARP images can be used to synthesize conventional tag lines, reconstruct displacement fields for small motions, and calculate two-dimensional (2-D) strain, The performance of this new approach is demonstrated using both real and simulated tagged MR images, Potential for use of HARP images in fast imaging techniques and three-dimensional (3-D) analyses are discussed.
引用
收藏
页码：186 / 202
页数：17
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