Effect of oxygen inhalation on relaxation times in various tissues

被引：150

作者：

Tadamura, E ^{[1
]}

Hatabu, H ^{[1
]}

Li, W ^{[1
]}

Prasad, PV ^{[1
]}

Edelman, RR ^{[1
]}

机构：

[1] BETH ISRAEL HOSP, DEPT RADIOL, BOSTON, MA 02215 USA

来源：

JOURNAL OF MAGNETIC RESONANCE IMAGING | 1997年 / 7卷 / 01期

关键词：

relaxation time; oxygen; paramagnetism; MR imaging (MRI); HASTE;

D O I：

10.1002/jmri.1880070134

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：

The effect of the oxygen inhalation on relaxation times was evaluated in various tissues, including the myocardium, liver, spleen, skeletal muscle, subcutaneous fat, bone marrow, and arterial blood, with a [H-1]MR system. Statistically significant decrease of T1 relaxation times was observed in the myocardium, spleen, and arterial blood after inhalation of 100% oxygen, whereas no significant change was observed in liver, skeletal muscle, subcutaneous fat, or bone marrow. The T2 relaxation time of these tissues did not differ significantly between before and after inhalation of the oxygen. These results indicate that [H-1]MRI can be used to evaluate changes with oxygen inhalation and that the effect of the oxygen inhalation on T1 relaxation time is different among various tissues.

引用

页码：220 / 225

页数：6

共 35 条

[1] PRELIMINARY EXPERIMENTAL RESULTS IN HUMANS AND ANIMALS WITH A SUPERCONDUCTING, WHOLE-BODY, NUCLEAR MAGNETIC-RESONANCE SCANNER [J].