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３５例经临床诊断证实的肝硬化患者，用９９ｍＴＣ－ＭＩＢＩ经直肠注入行门脉压测定，以心／肝比值反映门脉压，另以１２例非肝硬化者作对照组，检测结果经统计学处理差异非常显著（Ｐ＜０．００１）；另将肝硬化７例，非肝硬化４例，术中所测门脉压值与心／肝比值相比，二者呈显著正相关。结果表明，直肠注入９９ｍＴＣ－ＭＩＢＩ无创伤性测定门脉压，可获得反映门脉循环分流状况和程度的有关参数，并可替代创伤性门脉压测定。
Thirty-five patients with cirrhosis confirmed by clinical diagnosis were treated with rectal injection of 99mTC-MIBI, and portal pressure was measured by heart / liver ratio. Twelve non-cirrhotic patients were used as control group. The results were statistically analyzed There was significant difference between the two groups (P <0.001). In addition, there were 7 cases of cirrhosis and 4 cases of non-cirrhosis. There was a significant positive correlation between the measured portal pressure and heart / liver ratio. The results showed that rectal injection of 99mTC-MIBI noninvasive measurement of portal pressure, access to reflect the status and extent of portal circulation shunt parameters, and alternative to traumatic measurement of portal pressure.