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[目的]分析和探讨小肝癌的CT表现及其病理分析。[方法]37例经病理证实的小肝癌分别行多层螺旋CT平扫及三期扫描,扫描时间分别为动脉期25s,门脉期70s,延迟期5min,用高压注射器经肘静脉注射,速率为2.5ml/s～3ml/s,剂量为1.5ml/kg,并与病理对照。[结果]动脉期91.9%(34/37)肿瘤呈高密度,门静脉期67.6%(25/37)呈低密度,21.6%(8/37)呈高密度,其中8例延迟后平衡期呈低密度。[结论]多层螺旋CT三期扫描能反映出小肝癌血供特点和表现,并早期诊断。
[Objective] To analyze and discuss the CT findings of small hepatocellular carcinoma and its pathological analysis. [Methods] Totally 37 small hepatocellular carcinoma confirmed by pathology were scanned by multi-slice spiral CT and three-phase scanning respectively. The scanning time was 25s, portal period 70s, delay period 5min, respectively. The injection rate 2.5ml / s ~ 3ml / s, a dose of 1.5ml / kg, and with the pathological control. [Results] In the arterial phase, 91.9% (34/37) of the tumors showed high density with a low density of 67.6% (25/37) in the portal vein phase and a high density of 21.6% (8/37), of which 8 showed a low post- density. [Conclusion] Multi-slice spiral CT three-phase scan can reflect the characteristics and manifestations of blood supply of small hepatocellular carcinoma and early diagnosis.