摘要目的 探讨肝细胞癌(hepatocellular carcinoma,HCC)的超声造影(contrast-ehhanced ultrasonography,CEUS)定量参数与HCC内新生动脉的关系.方法 对115例HCC的CEUS图像进行脱机分析和免疫组化染色,获得感兴趣区的灌注曲线及CEUS定量参数:峰值强度(maximum of intensity,IMAX)、上升时间(rise time,RT)、达峰时间(time to peak,TTP)、平均渡越时间(mean trasit time corresponding to the center of grayity,mTT)、上升斜率(rise slope,RS)和始消时间(washout time,WT).获得82例HCC内的非成对动脉数,将CEUS定量参数和非成对动脉数进行统计学分析.结果 HCC中非成对动脉数与RT、TTP、RS呈中度相关,r分别为-0.446,-0.432,0.431(P＜0.05),与IMAX和WT呈弱相关,r分别为0.303和0.285(P＜0.05).结论 HCC内的新生动脉是HCC动脉相增强的病理生理基础,CEUS定量参数反映了肿瘤灌注情况,与HCC中的非成对动脉数有关.

abstractsObjective To explore the relationships between the quantitative parameters for contrastenhanced ultrasonography(CEUS) in hepatocellular carcinoma (HCC) and arteries in neoangiogenesis.Methods One hundred and fifteen HCCs in CEUS were analyzed off-line with dynamic vascular curve of ImageArena and immunohistochemical stained in the tissue slices.Parameters including maximum of intensity(IMAX),rise time(RT),time to peak(TTP),mean trasit time corresponding to the center of gravity(mTT) ,rise slope(RS) and washout time(WT) were analyzed by statistics.Unpaired arteries(UAs)of 82 HCC cases were succesfully stained.Results The number of UAs had moderate correlation with RT (r = - 0.446),TTP (r = - 0.432) and RS (r = 0.431) (P ＜ 0.05),and it had mild correlation with IMAX (r = 0.303) ,WT (r = 0.285) (P ＜0.05).Conclusions Neoangiogenesis is a functional adaptation to altered vascular dynamics.Quantitative parameters of CEUS,reflecting hemodynamics of tumors,are correlated with UAs.