锝-99m标记红细胞显像诊断肝海绵状血管瘤

TECHNETIUM^99m-LABELED RED BLOOD CELL IMAGING IN THE EVALUATION OF HEPATIC CAVERNOUS HEMANGIOMAS

229例临床疑为或为排除肝海绵状血管瘤的病人接受了^(99m)Tc-RBO显像,有149例诊为肝海绵状血管瘤,80例为非血管瘤病变。229例中有62例作了手术,其中38例证实为肝血管瘤,^(99m)Tc-RBC显像均为阳性结果,24例为非血管瘤病例,1例呈假阳性表现。该例系原发性肝癌伴以明显肝硬化,肝组织基础病变可能是造成假阳性的原因。对比病变的放射性强度,宜以与心脏血池相仿为依据。本组的敏感性为100％,特异性为95.8％,准确串为97.4％。

229 patients,clinically suspected of having hepatic cavernous hemangiomas or for exclusion,were examined with 99mTc-RBC delayed blood-pool imaging.149 hepatic cavernous hemangiomas and 80 non-hemangiomatous cases were diagnosed.In 229 cases,62 patients were operated upon,and out of them 38 cases were demonstrated to have cavernous hemangiomas.In all of them 99mTc-RBC images were positive.24 cases were non-hemangiomatous,and 99mTc-RBC images were negative except one patient.This false-positive patient was a primary hepatic cacinoma,complicated with cirrhosis.The severe,underlying liver disease with poor perfusion may be the cause of false positive result.So we suggest that only those lesions that have the radio-activity equal to that of the heart blood pool are considered to be cavernous hemangiomas.In this series the sensitivity of the test was 100%,specificity was 95.8%,accuracy was 97.4%.