ENDOGENOUS SUSCEPTIBILITY CONTRAST IN MYOCARDIUM DURING APNEA MEASURED USING GRADIENT RECALLED ECHO PLANAR IMAGING

被引：35

作者：

WENDLAND, MF ^{[1
]}

SAEED, M ^{[1
]}

LAUERMA, K ^{[1
]}

DECRESPIGNY, A ^{[1
]}

MOSELEY, ME ^{[1
]}

HIGGINS, CB ^{[1
]}

机构：

[1] UNIV CALIF SAN FRANCISCO,DEPT RADIOL,MAGNET RESONANCE SECT,SAN FRANCISCO,CA 94143

来源：

MAGNETIC RESONANCE IN MEDICINE | 1993年 / 29卷 / 02期

关键词：

DEOXYHEMOGLOBIN; MAGNETIC SUSCEPTIBILITY; MYOCARDIUM; ECHO PLANAR IMAGING;

D O I：

10.1002/mrm.1910290220

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：

Gradient recalled echo planar imaging was used to monitor changes in myocardial and left ventricular chamber blood intensity during apnea in rats. Significant signal loss in both blood (to 62 +/- 5% and 51 +/- 6% of baseline) and myocardium (to 79 +/- 2% and 76 +/- 3% of baseline) was observed at 45 and 90 s apnea while O2 saturation decreased from 98 +/- 1% to 62 +/- 7% and 36 +/- 9%, respectively. These results show that myocardial intensity is modulated by alterations in blood oxygenation.

引用

页码：273 / 276

页数：4

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