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受检者静脉注射９９ｍＴｃ－ＤＴＰＡ（３～８ｍｃｉ），使用ｒ相机，采集６分钟，利用Ｇａｔｅｓ法计算肾小球滤过率（ＧＦＲ）．重复性实验ｌ０例ＧＦＲ（１１～１０１．９ｍｌ／ｍｉｎ），结果两均数分别是６３．３５ｍｌ／ｍｉｎ，６２．５５ｍｌ／ｍｉｎ，Ｐ＝０．４７，两均数间均无差别，相关性很好，ｒ＝０．９８６，１５例ＧＦＲ与肌酐清除率（ＣＣｒ）比较，ＧＦＲ（８．１～１０１．７ｍｌ／ｍｉｎ）．ＣＣｒ（５．２～９７．４ｍｌ／ｍｉｎ）回归方程是ＣＣｒ＝－４．６３８＋０．９５ＧＦＲ，相关性很好，ｒ＝０．９８３
Subjects were intravenously injected with 99mTc-DTPA (3 to 8 mci) using an r-camera for 6 minutes and Gates method to calculate glomerular filtration rate (GFR). Repeat experiment l0 cases GFR (11 ~ 101.9ml / min), the results were 63.35ml / min, 62.55ml / min, P = 0.47, the mean was no significant difference between the two, the correlation Very good, r = 0.986, 15 cases of GFR and creatinine clearance (CCr) comparison, GFR (8.1 ~ 101.7ml / min). The regression equation of CCr (5.2 ~ 97.4ml / min) was CCr = -4.638 + 0.95GFR, the correlation was good, r = 0.983