【摘要】 目的 :观察分析CDFI和CDPI对HCC血供的特点以及PW探测肿瘤血流动力学改变。方法 :对 1 39例HCC的 1 94个瘤体进行CDFI和CDPI观察 ,应用PW对每例最大瘤体 6种血流参数进行控测 ,对V1 、RI进行分析。结果 :CDFI对肿瘤血流显示率为 94.3 % ;CDPI为 97.4 % ;PW检出搏动性血流频谱为 93 .5 % ,Vmax为 1 4 5cm·s- 1 ,最小为 1 2cm·s- 1 (78.3± 8.4) ;最大RI0 .83 ,最小 0 .2 3(0 .61± 0 .1 3) ,其中RI>7.0占 71 .5 % ,搏动性与持续性水纹状血流频谱同时检出率为 48.2 %。结论 :①对HCC瘤体观察所获血流信息CDPI较CDFI敏感 ,PW探及搏动性血流频谱的检出具有确诊意义 ;②瘤体的血供以动脉为主 ,部分为动脉与静脉双重血供 ;③血流动力学改变绝大多数为高速高阻型 ,亦有低速低阻型。更多还原

【Abstract】 Objective:To study the hemodynamic character of hepatocellular carcinoma (HCC) using CDFI, CDPI and PW.Methods:194 tumors of 139 cases were examined by CDFI and CDPI. Six kinds of hemodynamic parameters were detected in the biggest tumors of each patient.V 1 and RI were also analyzed.Results:Blood flow detectable rate of tumors was 94.3% by CDFI and 97.4% by CDPI. The pulsatile blood flow frequency spectrum detected by PW was 93.5% , Vmax 145 cm·s -1 , Vmin 12 cm·s -1 (78.30±8.40); RImax 0.83, RImin 0.23(0.61±0.13).The percentage of RI>7.0 was 71.5%. Detectable rate of both pulsation and persistent blood flow frequency spectrum were 48.2%.Conclusion:①CDPI is superior to CDFI in detecting blood flow signal of HCC, the pulsatile blood flow frequency spectrum has certain significance on HCC diagnosis.②Blood supply of tumors are mainly from artery, but part of them from both artery and vein.③The hemodynamic changes of HCC are mostly high resistant and high speed arterial flow, the low resistant and low speed exist,too.更多还原