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应用99mTc-MIBI直肠灌注进行门脉显像,根据心肌及肝区放射性计数测定核素心、肝比值H/L和门体分流指数SI作为门静脉循环参数与术中门静脉测压等指标作统计学处理。12例正常对照组的HIL为0.145±0.042,SI为0.124±0.029;18例非肝硬化性肝胆疾病组的H/L为0.207±0.076,SI为0.169±0.05(p均<0.01);47例肝硬化组的H/L为0.751±0.313。SI为0.422±0.075(与对照组及非肝硬化性肝胆疾病组比较P均<0.001);根据Child-pllgh分级的A、B、C三组间的差异亦有显著意义(P均<0.05)。H/L、SI与术中测压呈高度正相关(r=0.95,P<0.01)。以H/L≥0.30、SI≥0.22为阳性,诊断肝硬化门脉高压的灵敏度为96%、特异性为90%、准确性为94%。表明本方法可作为诊断肝硬化门脉高压的新方法。
99mTc-MIBI rectal perfusion was performed for portal imaging. The radionuclide counts were used to determine the radionuclide nucleus, liver ratio H / L and portosystemic shunt index SI as the parameters of portal vein circulation and portal vein manometry deal with. HIL in 12 normal controls was 0.145 ± 0.042 and SI was 0.124 ± 0.029; H / L in 18 non-cirrhotic hepatobiliary diseases was 0.207 ± 0.076, SI was 0.169 ± 0.05 (p <0.01). The H / L of 47 patients with cirrhosis was 0.751 ± 0.313. SI was 0.422 ± 0.075 (P <0.001 vs control group and non-cirrhotic hepatobiliary disease group). There was also a significant difference among the three groups according to Child-pllgh classification (P <0.05). H / L and SI were highly correlated with intraoperative manometry (r = 0.95, P <0.01). With H / L≥0.30, SI≥0.22 as positive, the sensitivity of diagnosing portal hypertension of cirrhosis was 96%, the specificity was 90% and the accuracy was 94%. This method can be used as a new method to diagnose portal hypertension in cirrhosis.