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目的 探讨阻力指数 (RI)在肝肿瘤鉴别诊断中的价值。方法 对 936例共 1 0 57个肝脏实质占位进行了彩色多普勒血流显像和脉冲多普勒血流分析。其中原发性肝恶性肿瘤 697例 ,转移性肝肿瘤 55例 ,肝血管瘤 87例 ,局灶性结节性增生 36例 ,血管平滑肌脂肪瘤 1 4例 ,炎性假瘤 1 1例 ,肝硬化结节1 2例 ,肝结核 5例 ,腺瘤 3例 ,脓肿 5例 ,脂肪瘤 2例 ,其他良性病变 9例。全部病例均经手术和病理证实。结果 肝脏恶性肿瘤动脉血流检出率 (92 % ,760 /82 8)明显高于肝良性肿瘤 (45 % ,1 0 3/2 2 9) ,肝恶性肿瘤的平均RI明显高于肝良性肿瘤 (P <0 .0 0 1 )。如果以多普勒测及动脉血流 ,且RI≥ 0 .6作为诊断肝脏恶性肿瘤的指标 ,则敏感性为 87% (71 7/82 8) ,特异性为 92 % (2 1 1 /2 2 9) ,准确性为 88% (92 8/1 0 57)。结论 RI在肝肿瘤的鉴别诊断中有较大的临床实用价值。
Objective To investigate the value of resistance index (RI) in the differential diagnosis of liver tumors. Methods Color Doppler flow imaging and pulse Doppler flow imaging were performed in 936 patients with a total of 1 0 57 liver masses. Including 697 cases of primary liver cancer, metastatic liver cancer in 55 cases, 87 cases of hepatic hemangioma, focal nodular hyperplasia 36 cases, angiomyolipoma 14 cases, inflammatory pseudotumor 11 cases, liver There were 12 cases of sclerosis, 5 cases of hepatic tuberculosis, 3 cases of adenoma, 5 cases of abscess, 2 cases of lipoma and 9 cases of other benign lesions. All cases were confirmed by surgery and pathology. Results The detection rate of hepatic arterial blood flow (92%, 760/82 8) was significantly higher than that of benign liver tumor (45%, 10 3/2 2 9). The average RI of hepatic malignant tumor was significantly higher than that of benign liver tumor (P <0. 0 0 1). If Doppler measurements of arterial blood flow and RI ≥ 0.6 were used as indicators of liver malignancy, the sensitivity was 87% (71 7/82 8) and the specificity was 92% (2 1 1/2 2 9) with an accuracy of 88% (92 8/1 0 57). Conclusion RI in the differential diagnosis of liver tumors have greater clinical value.