Objective: To evaluate the value of diffusion weighted magnetic resonance imaging in diagnosis and differentiation of focal liver masses.

目的：评价磁共振扩散加权成像在肝占位性病变中的诊断及鉴别诊断的价值及意义。

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Conclusion Diffusion-weighted MR imaging is valuable for the diagnosis and differentiation of mediastinal tumors and it is a useful supplement for conventional MRI.

结论mr弥散加权成像对纵隔肿瘤的诊断及鉴别诊断有一定价值，可作为纵隔MRI检查的有益补充。

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