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MRI检查肝局灶性病变很敏感,应用超顺磁氧化铁(SPIO)对比剂可进一步提高检查肝病灶及其组织特性的敏感度和特异度。作者报道1例肝腺瘤的SPIO增强MRI表现,为说明SPIO增强MRI区别肝腺瘤和局灶性结节增生(FNH)的作用还报道一例FNH。例1为女性,33岁,有10年口服避孕药史,急性腹痛就诊。增强CT扫描见肝右叶一环状强化肿块,中央为低密度区。MRI T_1WI上见肿块中央为不
MRI is very sensitive to detect focal liver lesions, and the application of superparamagnetic iron oxide (SPIO) contrast agents can further increase the sensitivity and specificity of examining liver lesions and their tissue characteristics. The authors reported a case of SPIO-enhanced MRI of hepatic adenoma, and reported one case of FNH in order to demonstrate the role of SPIO-enhanced MRI in distinguishing hepatic adenoma and focal nodular hyperplasia (FNH). Example 1 is female, 33 years old, has a history of oral contraceptives for 10 years, and presents with acute abdominal pain. The enhanced CT scan showed a ring-shaped fortified mass in the right lobe of the liver and a low density area in the center. On the MRI T_1WI, see the central mass is not