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首页> 外文期刊>Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine >Effects of hematocrit and oxygen saturation level on blood spin-lattice relaxation.
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Effects of hematocrit and oxygen saturation level on blood spin-lattice relaxation.

机译:血细胞比容和血氧饱和度对血液自旋晶格弛豫的影响。

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摘要

In the present study blood T(1) was determined as a function of hematocrit and oxygen saturation. T(1) showed a significant linear dependency on both of these parameters. In addition, oxygen dissolved in blood plasma in hyperoxygenated blood resulted in relaxation enhancement, comparable in size to that due to the change in oxygenation state of hemoglobin. As blood T(1) is a key factor for quantification of flow with arterial spin labeling methods, the influence of T(1) variation in the physiological range of hematocrit and oxygen saturation to flow determination is discussed.
机译:在本研究中,血T(1)被确定为血细胞比容和血氧饱和度的函数。 T(1)对这两个参数都显示出显着的线性依赖性。另外,在高氧血液中溶解在血浆中的氧导致松弛增强,其大小与血红蛋白的氧合状态变化所引起的松弛度相当。由于血液T(1)是用动脉自旋标记法量化血流的关键因素,因此讨论了血细胞比容和血氧饱和度的生理范围内T(1)变化对血流测定的影响。

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