【作者】 侯代伦； 孙小丽； 柳澄； 孙丛； 邓凯；

【机构】 山东省胸科医院； 北京世纪坛医院； 山东省医学影像研究所； 山东省千佛山医院；

【摘要】 目的探讨肝细胞癌的强化峰值时间与主动脉的强化峰值时间的相关性。方法 43例确诊为肝细胞癌的患者,应用64层螺旋CT,先行常规肝脏平扫,选取肿瘤最大径层面,再以该层面为中心行持续动态增强扫描,然后取肿瘤强化最高区域和同层面主动脉中心分别作为感兴趣区(RegionsofInterest,ROI),绘制二者的时间-密度曲线(time-densitycurve,TDC)并计算其强化峰值时间。结果 43例患者的肝细胞癌的强化峰值时间为(30.04±6.36)s,主动脉的强化峰值时间为(23.38±4.92)s;肝细胞癌的强化峰值时间与主动脉的强化峰值时间呈正线性相关关系,相关系数-0.662(r=0.662,P<0.05);肝细胞癌的强化走势有三种形式,只有23.3%与主动脉相似。结论肝细胞癌的强化峰值时间与主动脉的强化峰值时间有显著性差异,但二者具有一定的相关性。更多还原

【Abstract】 Purpose:To assess the correlation between the time to peak enhancement of hepatocellular carcinomas(HCC) and the aorta at 64-slice computed tomography(CT).Materials and Methods:43 patients with HCC underwent abdominal CT imaging by dynamic CT examination.The region of interest(ROI) was located at HCC and abdominal aorta,respectively.The time-density curves(TDC) of the HCC and the aorta were drawn.The times to peak enhancement of the HCC and the aorta were recorded and the correlation between the time to peak enhancement of the HCC and the aorta was analyzed.Results:The time to peak enhancement of the aorta and the HCC was(23.38±4.92)s and(30.04±6.36) s,respectively.The time to peak enhancement of the HCC was positively and linearly correlated with the time to peak aortic enhancement(r=0.662,P<0.05).There was 3 tendency of the enhancement of the HCC,only 23.3%similar to the aorta.Conclusion:There were significant differences between the time to peak enhancement of the aorta and the HCC,but they have substantial relationship.更多还原