Tadamura E, Hatabu H, Li W, Prasad P V, Edelman R R
Department of Radiology, Beth Israel Hospital, Boston, Massachusetts, USA.
J Magn Reson Imaging. 1997 Jan-Feb;7(1):220-5. doi: 10.1002/jmri.1880070134.
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 [1H]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 [1H]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.
使用[1H]磁共振系统评估了吸氧对包括心肌、肝脏、脾脏、骨骼肌、皮下脂肪、骨髓和动脉血在内的各种组织弛豫时间的影响。吸入100%氧气后，在心肌、脾脏和动脉血中观察到T1弛豫时间有统计学意义的下降，而在肝脏、骨骼肌、皮下脂肪或骨髓中未观察到显著变化。这些组织的T2弛豫时间在吸氧前后无显著差异。这些结果表明，[1H]磁共振成像可用于评估吸氧引起的变化，并且吸氧对T1弛豫时间的影响在不同组织中有所不同。
