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目的探讨磁共振灌注成像对不典型肝脓肿的诊断价值。方法对临床或手术病理证实的8例不典型肝脓肿的MRI资料进行回顾性分析。结果不典型肝脓肿MRI多表现为不均匀的稍长T1、稍长T2信号,时间-信号曲线表现为“速升-缓升”样变化。结论不典型肝脓肿多为早期肝脓肿,MRI平扫无特征性,结合灌注成像有助于诊断和鉴别诊断。
Objective To investigate the diagnostic value of MR perfusion imaging in atypical liver abscess. Methods The MRI data of 8 cases of atypical liver abscess confirmed clinically or surgically were retrospectively analyzed. Results MRI of atypical liver abscess manifested as slightly longer T1 and longer T2 signal than those of non - typical hepatic abscess. The time - signal curve showed “fast rise - slow rise”. Conclusions Atypical liver abscess is mostly early liver abscess. MRI scan has no characteristic. Combined with perfusion imaging is helpful for the diagnosis and differential diagnosis.