DCE—MSCT对肝硬化再生结节与小肝癌的鉴别诊断价值

【目的】评价动态增强多层螺旋CT（DCP-MSCT）扫描对肝硬化再生结节与小肝癌的鉴别诊断价值。【方法】回顾性分析25例小肝癌，28例肝硬化再生结节MSCT平扫、动态增强图像，比较小肝癌与肝硬化再生结节CT平扫及增强扫描结果。【结果】小肝癌平扫多为低密度，部分为等密度，DCE曲线呈“高容低阻型”18例，“低容低阻型”4例，不典型型3例。肝硬化再生结节平扫为等或稍高密度，DCE曲线呈“低容高阻型”14例，“等容等阻型”9例，不典型型5例。两组病例平扫和延迟期CT值差异无统计学意义，动脉期和门脉期CT值差异相比较差异有统计学意义。【结论]DCKMSCT在肝硬化再生结节与小肝癌鉴别诊断有重要意义。

Value of DCE-MSCT in Differential Diagnosis Between Liver Cirrhosis with Regenerating Node and Small Hepatic Cell Carcinoma

Objective] To study the value of dynamic contrast enhanced multi-row CT（DCE-MSCT） in differential di agnosis between liver cirrhosis with regenerating node and small hepatic cell carcinoma（SHCC）. Methods] Twenty five patients with SHCC（group A） and 28 patients with hepatic cirrhosis complicated with regenerating node（group B） were in eluded in this investigation. All cases were performed with abdominal conventional and DCE-MSCT scanning. Results were compared by SPSS software. Results] SHCC lesions mostly with high density and partly with isodensity were found on conventional images. Among them, DCE curve with ＂high blood flow and low resistance＂ was found in 18 SHCC, ＂low blood flow and resistance＂ in 4 and atypical type in 3. The plain scan of the regenerating nodes in liver cirrhosis showed isodensity and high-density including 14 with ＂low blood flow and high resistance＂, 9 with ＂iso-blood flow and resistance＂ and 5 with atypical type on DCE curve. There was significant difference in CT value at arterial and portal phase, but no signifi cant difference in conventional CT and delayed phase between SHCC group and regenerating node group.