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我院１９８８年以来４０００余例腹部ＭＲＩ中，发现肝占位性病变误诊３３例。所用机型为美国Ｄｉｓｏｎｉｃｓ公司０．５Ｔ超导ＭＲＩ，自旋回波序列（ＳＥ序列）、常规Ｔ１加权（Ｔ１ＷＩ）、质子加权（ＰＤＷＩ）、Ｔ２加权（Ｔ２ＷＩ），覆盖全肝。其中，ＰＨＣ误诊为ＭＨＣ５例、ＭＨＣ误诊为ＰＨＣ６例、ＰＨＣ误为ＨＨＥ５例、ＭＨＣ误诊为ＨＨＥ２例、ＨＨＥ误诊为ＰＨＣ６例、肝硬化结节误诊为ＰＨＣ２例、炎性假瘤误诊为ＰＨＣ３例、肝结核误诊为ＰＨＣ１例、ＨＣＹ误诊为ＨＨＥ３例。本文从病变的影像学特征和扫描技术方面详细探讨了误诊的原因和鉴别诊断要点。
In 4,000 cases of abdominal MRI in our hospital since 1988, misdiagnosis of liver occupying lesions was found in 33 cases. The model used was Disonics 0.5T superconducting MRI, spin echo sequence (SE sequence), conventional T1 weighted (T1WI), proton weighted (PDWI), T2 weighted (T2WI), covering the whole liver. Among them, PHC was misdiagnosed as 5 cases of MHC, MHC misdiagnosed as PHC 6 cases, PHC misdiagnosed as HHE 5 cases, MHC misdiagnosed as HHE 2 cases, HHE misdiagnosed as PHC 6 cases, cirrhotic nodules misdiagnosed as PHC 2 cases, inflammatory pseudotumors misdiagnosed as PHC 3 cases, Hepatic tuberculosis was misdiagnosed as PHC1 and HCY was misdiagnosed as HHE3. This article discusses in detail the causes of misdiagnosis and the points of differential diagnosis from the imaging features and scanning techniques of lesions.