目的在一项多观察者研究中,回顾性地比较双对比剂增强MRI(依次注射铁羧葡胺和钆布醇,即先用单对比剂铁羧葡胺增强,再做铁羧葡胺后动态钆布醇增强MRI)对肝脏局灶性良、恶性病变的检出和定性。材料与方法该项研究获得伦理委员会批准,免除病人的知情同意书。89例病人共128个肝脏局灶性病灶 Objective To retrospectively compare two contrast-enhanced MRIs in a multi-observer study (sequential injections of ironcarboxyglucosamine and gadobutrol, which were first potentiated with the single-contrast agent, Dynamic gadobutrol enhanced MRI) on the detection of liver benign and malignant lesions and qualitative. Materials and Methods The study was approved by the ethics committee to dispense patients’ informed consent. A total of 128 patients with liver focal lesions in 128 cases