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目的：研究DSA灌注成像对原发性肝细胞癌诊断的应用价值。方法分析34例原发性肝细胞癌病例DSA灌注成像影像，应用空间距离函数建立计算机临床诊断模型，然后把100个随机抽样测试样本输入模型验证。结果把100个随机抽样测试样本输入模型验证，真阳性率为92%，真阴性率94%。结论 DSA灌注成像是原发性肝细胞癌诊断的一种有效的方法。“,”Objective To study the value of DSA(digital subtraction angiography) perfusion imaging in the diagnosis of hepatocel ular carcinoma. Methods The 34 cases of DSA perfusion imaging data were analysed, the space-distance model was used to build computer diagnostic model,we input 100 cases of random samples to verify the model. Results The 100 cases of random samples were input into the model, in order to verify the model, The true positive rate was 92%, the true negative rate was 94%. Conclusion DSA perfusion imaging was an ef ective method in diagnosis of hepatocel ular carcinoma.