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目的:分析肝脏局灶性结节增生的CT平扫和动态增强扫描的表现,提高肝脏局灶性结节增生诊断准确率,降低误诊率。方法:回顾性分析6例经手术病理证实的肝脏局灶性结节增生患者的CT影像资料。结果:平扫病灶呈等或稍低密度;增强扫描动脉期显示明显强化,灶中瘢痕不强化;门脉期病灶呈稍高或等密度,中央瘢痕强化不明显;延时期呈等、低密度。术前定位诊断准确率100%,定性诊断准确率67%。结论:CT能够显示肝脏局灶性结节增生的血供特点,提高肝脏局灶性结节增生的诊断率。
Objective: To analyze the CT scan and dynamic contrast-enhanced scan of hepatic focal nodular hyperplasia, to improve the diagnostic accuracy of hepatic focal nodular hyperplasia and to reduce the misdiagnosis rate. Methods: CT images of 6 patients with focal nodular hyperplasia of the liver confirmed by surgery and pathology were retrospectively analyzed. Results: The lesion showed equal or slightly lower density; enhanced arterial phase was significantly enhanced scanning, focal scarring is not enhanced; portal lesion was slightly higher or equal density, central scar enhancement was not obvious; the delay was equal to low density. Preoperative localization diagnostic accuracy 100%, qualitative diagnostic accuracy 67%. Conclusion: CT can show the hepatic focal nodular hyperplasia blood supply characteristics and improve the diagnosis rate of hepatic focal nodular hyperplasia.