超声与CT诊断小肝癌的对比研究  

A comparative research on the diagnosis of small hepatocellular carcinoma by ultrasound and CT

作　　者：李向阳[1] 宋倩[2] 

机构地区：[1]江苏省南通市中医院放射科,江苏南通226001 [2]江苏省南通市中医院B超室,江苏南通226001

出　　处：《医学影像学杂志》2009年第12期1574-1576,共3页Journal of Medical Imaging

摘　　要：目的:比较超声与CT诊断小肝癌的临床价值。方法:通过对48例超声拟诊为肝癌的病例行CT检查,作对比研究。结果:本组病例超声拟诊为肝癌48例,其中误诊6例,确诊率87.5%;CT漏诊5例,确诊率89.6%。结论:小肝癌在超声和CT像上均有典型的影像学特征,但在早期,病灶较小、肝动脉血供不丰富、没有出现典型的组织坏死即病灶呈等密度时,CT可能会出现漏诊,此时结合超声、数字减影血管造影(DSA)联合诊断以提高小肝癌的检出率。Objective： To compare the clinical value of ultrasound and CT in the diagnosis of small liepatocellular carcinoma. Methods： The CT and ultrasound results of 48 cases, who were diagnosed as small hepatocelhlar carcinoma by ultrasound, were compared. Results：Among the 48 cases diagnosed as hepatocellular carcinoma by ultrasound, 6 eases were misdiagnosed, so the diagnostic rate of ultrasoundwas 87.5 %, while, 5 cases were missed by CT, so the diagnostic rate of CT was 89.6 %. Conclusion： Small hepatoceUular carcinoma has typical imaging characteristics both in ultrasound and CT examinations, but in the early stage, misdiagnosis may take place in CT examination. This is mainly because of the small lesion and the absence of typical tissue necrosis, which may result from the equal density of the lesion and deficiency of hepatic artery blood supply. The combination of ultrasound with digital subtraction angiography （DSA） can enhance the detection rate of small hepatocelMar carcinoma.

关 键 词：超声 小肝癌 体层摄影术 X线计算机 

分 类 号：R735.7[医药卫生—肿瘤] R445.1[医药卫生—临床医学]