螺旋CT双期肝脏增强扫描对肝癌和肝转移瘤的诊断  

Helical Biphasic Contrast-enhanced CT of the Liver for Date Ecting Hepatocellular Carcinoma and Liver Metastases

作　　者：李传福[1] 刘松涛[1] 马祥兴[1] 王青[1] 

机构地区：[1]山东医科大学附属医院,济南市250012

出　　处：《医学影像学杂志》1998年第1期18-21,共4页Journal of Medical Imaging

摘　　要：目的：比较螺旋CT肝脏双期增强扫描的动脉期和门脉期对肝癌和肝转移瘤的检出率。材料和方法：对97例肝癌和47例肝转移瘤病人行螺旋CT双期增强扫描，造影剂注射速度为3ml／S，扫描延迟时间动脉期为30秒，门脉期为65秒。比较动脉期和门脉期对病灶的检出率。结果：207个肝癌病灶，动脉期和门豚期检出率分别为92％和83％，其中对于直径≤3cm病灶的检出率分别为83％和54％（P＜0．005）。482个转移瘤病灶，动脉期和门脉期的检出率分别为70％和96％，动脉期在7例病人中多检出17个病灶。结论：动脉期与门脉期相比，可以显著提高对肝癌和其它多血管肿瘤的检出率，对小的肝癌病灶检出的意义更大。Purpose:To evaluate the effect of biphasic helical CT on detecting hepatocellular carcinoma(HCC)and liver metastases. Materials an mathods:CT was per formed in 97 patients with HCC and in 47 patients with liver metastases. A monophasic injection of contrast medium at a rate of 3ml/sec was used. After injection of contrastmaterial,the liver was scanned in the arterial (scannging de lay, 30sec)an portal venous phase (scanning de lay,65sec ), Enhancement of each lesion in each phase was evaluated,Results: 207 HCC lesions were detected,lesions of92 % was found in hepatic arterial phase(HAP)and 83%in portal venous phase(PVP). The lesions less than 3cm indiameter shown in HAP an PVP were 83% and 54% respectively (P<0.005),for 482 metaatases lesions were detected, 70% was found in HAP and 96 % was foun in PVP, 17 lesions were detected in HAP only for 7 patients with1iYer metastases. Conclusion: HAP is superior to PVP for detectiong of HCC and other hypervascular liver neoplasms,especially for small hepatocellular carcinoma (SHCC),

关 键 词：肝转移瘤 肝脏增强扫描 螺旋CT双期增强扫描 造影剂注射速度 诊断 扫描延迟时间 动脉期 检出率 门脉期 肝癌病灶 血管肿瘤 病灶检出 

分 类 号：R735.7[医药卫生—肿瘤] R816.5[医药卫生—临床医学]