肝脏局灶性结节增生、小肝癌MSCT相关参数比较及其临床应用价值分析

目的比较肝脏局灶性结节增生、小肝癌MSCT相关参数,分析其临床应用价值。方法选取本院2017年6月至2019年10月收治的40例肝脏局灶性结节增生和55例小肝癌患者作为研究对象,将MSCT检查结果进行讨论和分析,比较两种病变能谱定量参数和不同能量水平下噪声比值。结果肝脏局限性结节增生病灶与周围肝组织碘浓度、标准化碘浓度均高于小肝癌组(P<0.05);动脉期肝脏局灶性结节增生和小肝癌患者的噪声比较呈逐渐递减状态,能量水平越高,噪声比值越低。其中40keV、80keV、120keV能量水平下肝脏局灶性结节增生噪声比值均高于小肝癌(P<0.05)。门脉期80keV、120keV能量水平下肝脏局灶性结节增生噪声比值均低于小肝癌(P<0.05)。结论MSCT能有效鉴别诊断肝脏局灶性结节增生、小肝癌,可为临床提供可靠的影像学依据。

M S CT Parameters of Focal Nodular Hyperplasia of Liver and Small Hepatoce llular Carcinoma,and Analyze Its Clinical Application Value

Objective To compare the MSCT parameters of focal nodular hyperplasia of liver and small hepatocellular carcinoma,and analyze its clinical application value.Methods 40 patients with focal nodular hyperplasia of liver and 55 patients with small hepatocellular carcinoma who were admitted to our hospital from June 2017 to October 2019 were selected as subjects.The results of MSCT examination were discussed and analyzed,and the quantitative parameters of energy spectrum and noise ratio under different energy levels of the two lesions were compared.Results The concentration of iodine and standardized iodine in local nodular hyperplasia lesion and surrounding liver tissue were higher than those in small liver cancer group(P<0.05).The noise of patients with focal nodular hyperplasia of liver and small hepatocellular carcinoma in the arterial phase showed gradual decreasing trend.The higher the ability level was,the lower the noise ratio was.The noise ratio of focal nodular hyperplasia of liver in the level less than 40keV,80keV,and 120keV was higher than that of small hepatocellular carcinoma(P<0.05).The noise ratio of focal nodular hyperplasia of liver in the level less than 80keV and 120keV was lower than that of small hepatocellular carcinoma in the portal phase,(P<0.05).Conclusion MSCT can effectively differentiate liver focal nodular hyperplasia and small liver cancer,and provide reliable imaging evidence for clinical.