多层螺旋CT动态增强扫描对不典型肝脓肿的诊断价值分析

摘要

目的：研究多层螺旋CT动态增强扫描对不典型肝脓肿的诊断价值。方法回顾性分析我院2012年5月～2015年2月收治的46例经手术病理或穿刺活检证实的不典型肝脓肿患者的多层螺旋CT动态增强扫描及平扫的表现特征。结果 CT平扫结果显示：患者病灶形态呈片状或类圆形、边界多不清楚的低密度区。多层螺旋CT动态增强扫描结果显示：（1）动脉期：25例患者病灶周围呈楔形或片状的肝段短暂强化，发生率为54.35%；（2）门静脉期：16例出现晕征，发生率为34.78%，20例出现蜂窝征及细网格征，发生率为43.48%，10例出现周边多囊征，发生率为21.74%；（3）延迟期：30例病灶范围比平扫时缩小，表现为持续强化征，发生率为65.22%。结论与常规CT比较，多层螺旋CT动态增强扫描对不典型肝脓肿的三期具有特征性表现，对判断不典型肝脓肿的病理过程具有重要的价值，更有利于提高不典型肝脓肿的诊断准确性。%ObjectiveTo investigate the analysis of dynamic enhanced multi-slice spiral CT in the diagnosis of atypical hepatic abscess.MethodsThe performance characteristics by multislice spiral CT dynamic enhancement scanning and unenhanced of 46 patients with pathologically confirmed or biopsy in patients with atypical hepatic abscess in our hospital from May 2012 to February 2015 were retrospectively analyzed. ResultsCT scan showed: patients form lesions were flaky or oval, clear boundary more low-density areas. Dynamic enhanced multi-slice spiral CT scan results show: (1) in the arterial phase: 25 cases of patients with lesions around the wedge-shaped or sheet of liver segments briefly strengthening, the rate was 54.35%; (2) portal venous phase: 16 cases of halo sign, the rate was 34.78%, 20 cases appeared cellular levy and levy a fine mesh, incidence, 43.48%, 10 cases surrounding polycystic levy, the rate was 21.74%; (3) the delay period: 30 cases of lesions in scope than flat When sweep shrink, the performance continued to strengthen levy, the rate was 65.22%.ConclusionThe comparison with conventional CT, multislice spiral CT dynamic enhancement scanning for three atypical hepatic abscess has a characteristic performance, has important value judgment on the pathological process atypical hepatic abscess, more conducive to improving the diagnosis of atypical hepatic abscess accuracy.