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目的 :评价三期螺旋 CT扫描对肝细胞癌和肝血管瘤的诊断及鉴别诊断价值。方法 :对 76例肝脏肿瘤行动脉期 (HAP)、门脉期 (PVP)和平衡期三期螺旋 CT扫描 ,绘出时间 -密度曲线 ,观察肿瘤的强化特征。结果 :1时间 -密度曲线 :81 %肝细胞癌为 型速升速降型 ,92 %肝血管瘤为 1型速升缓降型 ;2肝细胞癌组在HAP与 PVP强化密度的差异有显著性 (P<0 .0 5 ) ,肝血管瘤组在 HAP与 PVP强化密度差异无显著性。结论 :三期螺旋 CT扫描对肝细胞癌和肝血管瘤的诊断及鉴别诊断有重要价值 ,时间 -密度曲线可作为诊断的参考 ,对不典型病例平衡期扫描很有必要 ,有助于病灶的定性
Objective: To evaluate the value of three-phase spiral CT in the diagnosis and differential diagnosis of hepatocellular carcinoma and hepatic hemangioma. Methods: Totally 76 patients with HCC, portal vein (PVP) and balance phase three-phase spiral CT scan were used to draw the time-density curve to observe the enhancement characteristics of the tumor. Results: 1 time-density curve: 81% of hepatocellular carcinoma type ascending speed down type, 92% of hepatic hemangioma type 1 ascending descending type; 2 hepatocellular carcinoma in HAP and PVP enhanced density difference was significant (P <0.05). There was no significant difference between HAP and PVP in hepatic hemangiomas. Conclusion: Three-phase spiral CT scan has important value in the diagnosis and differential diagnosis of hepatocellular carcinoma and hepatic hemangioma. The time-density curve can be used as a reference for diagnosis. It is necessary to scan the atypical cases during the balance phase, Qualitative