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目的探讨肝脏局灶性结节样增生(FNH)的超声造影表现,旨在提高超声造影对FNH诊断的认识。方法收集2007年5月至2009年2月期间在四川大学华西医院行超声造影检查并经病理检查证实的FNH患者12例,并复习有关文献。结果超声造影动脉期全部病灶均迅速强化,9/12例病灶动脉期可探及“轮辐状”增强,实质期有11/12例病灶呈稍高或等增强,1/12例病灶呈稍低增强。结论超声造影能动态显示FNH的血流灌注,特别是动脉期的“轮辐状”血流对FNH的诊断具有重要价值。
Objective To investigate the contrast-enhanced ultrasonography of focal nodular hyperplasia (FNH) in the liver to improve the diagnosis of FNH by contrast-enhanced ultrasound. Methods Twelve cases of FNH confirmed by pathological examination at Huaxi Hospital of Sichuan University from May 2007 to February 2009 were collected and reviewed. Results All the lesions of the arterial phase during contrast-enhanced ultrasound were rapidly intensified. In the 9/12 arterial phase, radiofrequency ablation and “spoke-like” enhancement were observed. In 11/12 lesions, the lesions were slightly elevated or equally enhanced in 1/12 lesions Slightly lower enhancement. Conclusion Contrast-enhanced ultrasound can dynamically display the perfusion of FNH, especially the “spoke-like” blood flow in the arterial phase is of great value in the diagnosis of FNH.