MSCT增强扫描动脉早期成像在肝局灶性病变中的应用  

Evaluation of Early Arterial Phase Enhanced Imaging with Multi-slice Spiral CT in Liver Focal Lesions

作　　者：王梅[1] 李长勤[1] 朱建忠[1] 李筱倩[1] 闫呈新[1] 

机构地区：[1]泰山医学院附属医院影像科

出　　处：《中国CT和MRI杂志》2010年第3期47-50,共4页Chinese Journal of CT and MRI

摘　　要：目的探讨MSCT肝脏增强扫描动脉早期(EAP)成像在肝局灶性病变中的应用价值。方法对130例肝局灶性病变患者行MSCT扫描(平扫、增强EAP、门脉期),分别由两位资深影像医师独立进行阅片,分析各病变EAP的显示情况及强化特点。结果 130例患者中82.3%的病灶EAP有强化,分别为HCC(92.5%,37/40),肝血管瘤(100%,34/34),肝转移瘤(83.3%,25/30),肝脓肿(100%,10/10),胆管细胞癌(25%,1/4)。其中病灶内异常血管及不均匀强化对HCC、边缘结节状强化对血管瘤、环状强化对转移瘤的阳性预测值及特异性分别为79%-100%和91%-100%。结论 MSCT增强扫描EAP在肝局灶性病变的检测、定性方面均有重要价值,为其临床诊断、治疗提供了更多的影像学信息。Objective To evaluate the value of early arterial phase （EAP） enhanced imaging with MSCT in detecting and diagnosing liver focal lesions. Methods The study included 130 Patients who were examined with multi-phase enhanced abdominal CT scan （plain, early arterial and portal venous phase）.The images were analyzed separately by two radiologists. Results There were 82.3% of the 130 cases that demonstrated EAP enhancement. Patterns associated with positive predictive values of 79% or greater and specificity of 91% or greater included abnormal internal, vessels, or heterogeneous （HCC）, peripheral nodules （hemangioma）, single ring （metastasis）. Conclusion Focal liver lesions could be detected effectively in EAP. The enhancement appearances in this phase were of great applicative value in diagnosis and differential diagnosis of the focal liver lesions.

关 键 词：体层摄影术 X线计算机 动脉早期 肝脏 局灶性病变 

分 类 号：R814.4[医药卫生—影像医学与核医学] R575[医药卫生—放射医学]