螺旋CT三期增强扫描对小肝癌的诊断价值

目的探讨螺旋CT三期增强扫描的影像学特点及其对小肝癌的定性诊断参考价值。方法回顾性分析经病理证实的42例小肝癌患者影像学资料,总结其平扫及三期增强扫描图像影像学特征。结果 42例患者共有47处病灶,右半肝多见,平扫期均为低密度影或等密度病灶,动脉期29处病灶强化,门脉期34处病灶强化,延迟期4例略强化。结论小肝癌具有平扫低密度影伴门脉期或动脉期强化显影、延迟期快速消退的影像学特征,能够为小肝癌的定性诊断提供参考。

Value of Enhancement Scanning with Spiral CT in Diagnosis of Small Hepatocellular Carcinoma

Objective To investigate the image features of spiral CT enhancement scanning at stage 3 and the reference value in the qualitative diagnosis of small hepatocellular carcinoma. Methods We used retrospective method to analyze image data of 42 cases diagnosed as small hepatoceUular carcinoma with pathobiology and summarized the image features of kinetic enhancement scanning at Stage 3 with spiral CT. Results There were 47 lesions in 42 cases, more common in the right liver, and the imaging at plain scan stage showed low-density shadow or isodensity lesions, and in the 47 lesions, 29 were reinforcement in the arterial phase, 34 in the portal vein phase and 4 in the lag period. Conclusion The inhomogeneous reinforcement in arterial phase and in portal vein phase, and the rapid regression in lag period are imageology characteristics of small hepatocellular carcinoma, valuable to its qualitative diagnosis.