Objective: To evaluate MRI features of cerebral cavernous angioma and discuss the value of diffusion weighted magnetic resonance imaging (DWI).
目的：探讨脑内海棉状血管瘤的MRI表现及磁共振弥散成像(DWI)的诊断价值。
Objective: To evaluate the value of diffusion-weighted magnetic resonance imaging (MRI-DWI) in diagnosing acute cerebral-infarction.
目的：探讨扩散加权磁共振成像在急性脑梗死诊断中的价值。
Objective To compare the efficacy of routine magnetic resonance imaging(MRI) to that of diffusion-weighted imaging(DWI) in the diagnosis of multiple sclerosis(MS).
目的比较常规磁共振（MRI）检查和弥散加权磁共振（DWI）检查技术对多发性硬化（MS）的诊断价值。
Conclusion MRI manifestations of PRES have distinctive characteristic, Diffusion-weighted imaging for judging the prognosis has important clinical value.
结论PRES的MRI表现具有鲜明的特征性，扩散加权成像对预后判断具有重要的临床价值。
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。
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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