Fast imaging of phosphocreatine using a RARE pulse sequence

被引：23

作者：

Greenman, RL ^{[1
]}

Elliott, MA ^{[1
]}

Vandenborne, K ^{[1
]}

Schnall, MD ^{[1
]}

Lenkinski, RE ^{[1
]}

机构：

[1] Univ Penn, Med Ctr, Dept Radiol, Magnet Resonance Imaging & Spect Res Grp, Philadelphia, PA 19104 USA

来源：

MAGNETIC RESONANCE IN MEDICINE | 1998年 / 39卷 / 05期

关键词：

RARE; phosphorus imaging; multiecho sequence;

D O I：

10.1002/mrm.1910390523

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 is described for acquiring phosphocreatine (PCr) images of skeletal muscle using a rapid acquisition with relaxation enhancement (RARE) pulse sequence, All of the phosphorus metabolites other than PCr are forced to dephase within the first few echoes, whereas the Carr-Purcell Meiboom-Gill (CPMG) pulse sequence maintains a high PCr signal long enough to acquire 64 echoes in a single shot. Axial PCr images of a human forearm with a signal-to-noise ratio of 9 were acquired in 2 min. The effect of the refocusing pulse section profile on the ratio of desired to undesired metabolite signal is demonstrated.

引用

页码：851 / 854

页数：4

共 13 条

[1] NMR CHEMICAL-SHIFT IMAGING IN 3 DIMENSIONS [J].