肝脓肿诊断在螺旋CT三期增强扫描的应用价值

目的:评价螺旋CT三期增强扫描对肝脓肿的诊断价值。方法:回顾性分析2 3例经临床或病理证实的肝脓肿的螺旋CT平扫及三期增强扫描表现。三期延迟时间分别为2 5s、6 0s和12 0s。结果:肝脓肿增强扫描的典型CT表现为:①动脉期灶周楔形或片状一过性强化;②门脉期显示环靶征、簇状征;③延迟期脓肿壁及水肿均为等密度,仅坏死区无强化呈低密度。结论:螺旋CT三期增强扫描诊断肝脓肿具有特征性,是必不可少的检查方法。

Triple-Plase Contrast Enhanced CT: Value in the Diagnosis of Hepatic Abscess

Objective To study spiral CT findings o f hepatic abscess and evaluate triple-phase enhanced spiral CT scan in the diagn osis hepatic abscess.Methods Spiral CT findings of the plain scann i ng and triple-phase enhance scanning of the hepatic abscess in 23 cases were re trospectively analyzed.All of which were diagnosed clinically on pathologically The delay times of the three phase were 25 s,60 s and 120 s respectively. Results The typical features of the hepatic abscess in contrast enhanc ement examination were as following:1 Periabscess wedge-shaped or patchy enhanc ed area in arterial phase:2 Double-target sign and cluster sing were shown in p ortal phase:3 in the delayed phase the wall and edematous zone of the abscess we re all isodense only the necrotic areas were not enhanced and was hypodense. Conclusion Triple-phase contrast enhancing SCT scanning was specific in diagnosings hepatic abscess and was an indispensable examination method.