【摘要】 目的　研究肝脓肿的动态增强CT表现。方法　回顾分析了 6 2例手术或临床证实的肝脓肿病例的CT资料 ,所有病例均行CT平扫及增强扫描 ,其中 2 3例行增强动态CT扫描。结果　肝脓肿动态CT表现为 :(1 )早期 (30s) ,脓肿壁明显强化 ,脓肿周围肝组织一过性明显强化 ;(2 )晚期 (6 0 90s) ,增强形式按脓肿结构不同而异 ,可为脓肿壁环状强化 ,或脓肿不规则强化 ;(3)延时期 ,脓肿增强有所消退 ,脓肿周围低密度环可强化为等密度 ,或脓肿内部强化 ,病变范围缩小 ,液化坏死区更显明显。结论　肝脓肿诊断应常规进行CT增强扫描 ,CT动态增强及延时扫描有助于不典型病例的诊断。更多还原

【Abstract】 Objective To investigate the dynamic enhanced CT appearance of hepatic abscesses.Methods CT films of 62 cases of hepatic abscesses,examined by both plain and enhanced CT scans,were reviewed retrospectively.Of the 62 cases,23 were examined by dynamic CT scan.Results The dynamic CT appearance of hepatic abscesses was characterized by:(1)In the early phase(30sec),abscess membrane enhanced obviously and the liver parenchyma surrounding the abscesses enhanced transiently;(2)In the late phase(60～90 sec),the enhancement patterns of the abscesses varied from the ring enhancement of the abscess membrane to the irregular enhancement of the abscess;(3)In the delayed phase,the enhancement of abscess diminished in that the hypodense ring enhanced and became isodense ,or the abscess enhanced diffusely and became smaller,the colliquative necrosis area more obvious.Conclusion Contrast enhanced CT should be used routinely in the evaluation of hepatic abscesses.The dynamic and delayed scan is necessary for the diagnosis of atypical hepatic abscesses.更多还原