多层螺旋CT三期增强扫描在诊断肝脓肿中的价值

The Diagnosis of Hepatic Abscess with Triple-phase Contrast Enhanced Multi-row Detector CT

目的:探讨肝脓肿多层螺旋CT三期增强扫描的表现和诊断价值。方法:回顾分析经临床或病理证实的30例肝脓肿的动态增强各期CT表现,所有患者均进行了肝动脉期、门脉期和实质期肝脏3期动态增强CT检查。结果:30例肝脓肿中,病灶位于肝左叶7例,肝右叶21例,左右叶均有2例。典型肝脓肿12例,表现为环靶征,中心均为低密度影并含气体;不典型肝脓肿18例,其中13例表现为蜂窝状,并有持续强化征、边缘锐利征等5例出现一过性肝段性强化。结论:多层螺旋CT3期增强扫描诊断肝脓肿具有特征性,对提高肝脓肿的诊断率和鉴别诊断均有重要价值。

Objective：To study multi-row detector CT findings of hepatic abscess and evaluate triple-phase enhanced spiral CT scan in the diagnosis of hepatic abscess. Methods： Multi-row detector CT findings of the plain scanning and triple-phase enhance scanning of the hepatic abscess in 30 cases were retrospectively analyzed. Results：Among 30 cases, 7 cases were in the left lobe, 21 were in the right lobe,2 were in both left and right lobe. The typical features of hepatic abscess in 12 cases on contrast enhancement scam were double-target sign and low density contain air in the central. The untypical features of hepatic abscess were found in 18 caces, 13 cases were shown honeycomb appearance and periabscess wedge-shaped or patchy enhanced area in arterial phase,5 cases were shown segment enhancement （patchy enhanced segment area）. Conclusion：Triple-phase contrast enhancing multi-row detector CT scanning is specific in diagnosis of hepatic abscess and play an important role in differential diag- nosis.