Objective To evaluate diagnostic value of diffusion-weighted imaging (DWI) and perfusion-weighted imaging(PWI) in acute cerebral ischemia.

目的评价磁共振弥散加权成像（DWI）和灌注加权成像（PWI）在急性脑缺血中的诊断价值。

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Objective: To evaluate the clinical application of diffusion weight imaging (DWI) and perfusion weight imaging (PWI) in the super acute and acute ischemic stroke.

目的：探讨弥散加权成像(DWI)和灌注加权成像(PWI)在超急性和急性缺血性脑卒中的应用价值。

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Functional magnetic resonance imaging (fMRI) includes diffusion-weighted imaging (DWI), perfusion-weighted imaging (PWI), and MR spectroscopic imaging (MRS) in hepatic le - sions.

磁共振功能成像在肝脏应用主要包括弥散成像、灌注成像、波谱显像三方面。

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