TRACKING MOTION WITH TAGGED RAPID GRADIENT-ECHO MAGNETIZATION-PREPARED MR IMAGING

被引：15

作者：

NIITSU, M ^{[1
]}

CAMPEAU, NG ^{[1
]}

HOLSINGERBAMPTON, AE ^{[1
]}

RIEDERER, SJ ^{[1
]}

EHMAN, RL ^{[1
]}

机构：

[1] MAYO CLIN & MAYO FDN,DEPT DIAGNOST RADIOL,MAGNET RESONANCE LAB,200 IST ST SW,ROCHESTER,MN 55905

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1992年 / 2卷 / 02期

关键词：

MAGNETIC RESONANCE (MR); EXPERIMENTAL STUDIES; MOTION STUDIES; PHANTOMS; PULSE SEQUENCES; RAPID IMAGING;

D O I：

10.1002/jmri.1880020208

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

A technique for rapid assessment of tissue motion was developed by combining spatially selective radio-frequency tagging pulses with centric phase-encoding view ordering in a T1-weighted, magnetization-prepared gradient-echo acquisition sequence. This sequence allowed labeling and tracking of tissue motion with single-image acquisition times of less than 3 seconds. Multiple tagged bands 3 mm thick were superimposed orthogonal to the imaging plane. Motion in the interval between tagging and the start of image acquisition could then be precisely determined. The technique was evaluated with phantom studies and then applied to human volunteers for assessment of skeletal muscle motion, phonation, and pelvic floor motion.

引用

页码：155 / 163

页数：9

共 15 条

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