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采用吸纯氧法及用锝９９ｍ（~（９９ｍ）Ｔｃ）标记的人体大颗粒聚合白蛋白（ＭＡＡ）静脉注射法测定２５名健康人及３０例慢性阻塞性肺病（ＣＯＰＤ）患者的静动脉分流率。吸纯氧法测得健康组及ＣＯＰＤ组Ｑｓ／ＱＴ分别为２．９±２．６％、６．４±４．５％，两者差异显著（Ｐ＜０．０１）。核素法测得健康组ＣＯＰＤ组Ｑｓ／ＱＴ分别为１．２±０．７％、４．６±２．４％，两者差异显著（Ｐ＜０．０１）。吸纯氧法测得ＣＯＰＤ组Ｑｓ／ＱＴ的均值（６．４％）是对照均值（３．９％）的２．２倍，而核素法测得ＣＯＰＤ组的均值（４．６％）是对照组（１．２％）的３．８倍，两者差异显著（Ｐ＜０．０１）。提示：核素法是一种较之吸纯氧法灵敏、可靠、简便的测定Ｑｓ／ＱＴ的方法
Twenty-five healthy subjects and 30 patients with chronic obstructive pulmonary disease (COPD) undergoing superoxide dismutase and 99m Tc-labeled human macrophage albumin (MAA) rate. The Qs / QT values of healthy group and COPD group were 2.9 ± 2.6% and 6.4 ± 4.5%, respectively, which were significantly different between the two groups (P <0.01). The Qs / QT of COPD group was 1.2 ± 0.7% and 4.6 ± 2.4% respectively by nuclide method, the difference was significant (P <0.01). The mean value of Qs / QT (6.4%) in the COPD group was 2.2 times of that in the control group (3.9%), while the average value of the COPD group (4.6% Which is 3.8 times that of control group (1.2%), the difference between the two groups is significant (P <0.01). Hint: The radionuclide method is a more sensitive, reliable, and simple method for the determination of Qs / QT than the pure oxygen method