论文部分内容阅读
目的探讨64层螺旋CT对肝脏局灶性结节性增生(FNH)的诊断价值。方法分别选取45例FNH患者及45例肝细胞癌(HCC)患者作为研究对象,均给予64层螺旋CT平扫及增强扫描。比较FNH和HCC的大小、分布情况、CT平扫及增强的扫描特征。结果位于肝包膜下的FNH的比例高于HCC(P<0.05);CT平扫显示,FNH密度略低,中心部表现为星芒状低密度区,HCC密度略低,内部呈现低密度囊变坏死和高密度出血。FNH及HCC均为快进快出强化,FNH在延迟期的中心星芒状瘢痕区域得到强化;FNH的中心瘢痕比例高于HCC(P<0.05),而门静脉癌栓和肝硬化的比例低于HCC(P<0.05)。结论 64层螺旋CT能清晰地显示肝脏局灶性结节性增生的影像学特征,诊断价值较高,值得推广应用。
Objective To investigate the diagnostic value of 64-slice spiral CT in the diagnosis of focal nodular hyperplasia (FNH) in the liver. Methods Forty-five patients with FNH and 45 patients with hepatocellular carcinoma (HCC) were enrolled in this study. All patients underwent 64-slice spiral CT scan and contrast-enhanced scan. FNH and HCC size, distribution, CT scan and enhanced scan features. Results The proportion of FNH located in the hepatic capsule was higher than that of HCC (P <0.05). The CT scan showed that the density of FNH was slightly lower than that of HCC. The center of the FNH was slightly lower than that of HCC. Become necrotic and high-density bleeding. FNH and HCC were both fast-forward and rapid-enhancement. FNH was enhanced in the central stellate scar in the delayed phase. The proportion of central scar in FNH was higher than that in HCC (P <0.05), while the proportion of portal vein tumor thrombus and cirrhosis was lower than HCC (P <0.05). Conclusion 64-slice spiral CT can clearly show the imaging features of focal nodular hyperplasia in liver, which has a high diagnostic value and is worth popularizing and applying.