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目的：探讨原发性肝癌在高危人群中的检出率及其声像图、血流动力学特点。方法：应用Ｂ超、彩色多普勒血流显像（ＣＤＦＩ）及三维彩色血管能量成像（３ＤＣＰＡ）检查１０３８３例肝脏。结果：对照组肝癌检出率为０．１４％，脂肪肝组检出率为０．８４％，慢性肝炎及乙型肝炎病毒（ＨＢＶ）感染组检出率为１０．５６％，肝硬化组检出率为３６．６１％。与对照组比较，肝癌发生危险度在肝硬化组最高（ＲＲ＝２６１．５，９５％ＣＩ＝１４０．４５～４７９．１４），依次为慢性肝炎、ＨＢＶ感染组（ＲＲ＝７５．４３，９５％ＣＩ＝４０．２１～１３７．５３），脂肪肝组（ＲＲ＝６．００，９５％ＣＩ＝３．２２～１８．３６）。结论：慢性肝炎、ＨＢＶ感染、肝硬化中原发性肝癌发生危险度高；脂肪肝和慢性肝炎、ＨＢＶ感染、肝硬化同属原发性肝癌的高危人群。血管绕行、扩张、扭曲、变形及搏动性动脉血流为其特异征象
Objective: To investigate the detection rate, acoustic imaging and hemodynamic characteristics of primary liver cancer in high-risk populations. Methods: 10383 cases of liver were examined by B-ultrasonography, color Doppler flow imaging (CDFI) and three-dimensional color vascular energy imaging (3D-CPA). Results: The detection rate of liver cancer was 0.14% in the control group, 0.84% in the fatty liver group, and 10.56% in the chronic hepatitis and hepatitis B virus (HBV) infection group. The detection rate was 36.61%. Compared with the control group, the risk of liver cancer was highest in the cirrhosis group (RR=261.5, 95%CI=140.45～479.14), followed by chronic hepatitis and HBV infection (RR=75.43,95). %CI = 40.21 ~ 137.53), fatty liver group (RR = 6.00, 95% CI = 3.22 ~ 18.36). Conclusion: The risk of primary liver cancer is high in patients with chronic hepatitis, HBV infection, and cirrhosis; fatty liver and chronic hepatitis, HBV infection, and cirrhosis belong to the high risk group of primary liver cancer. Vascular bypass, dilatation, distortion, deformation and pulsatile arterial blood flow as its specific signs