灌注和弥散加权磁共振成像在脑梗死超早期有着潜在的应用价值。
Perfusion - and diffusion-weighted MRI has potential application values in hyperacute cerebral infarction.
目的评价磁共振弥散加权成像(DWI)表观弥散系数(adc)和ADC图对脑缺血的诊断价值。
Objective To evaluate the diagnostic value of (DWI) apparent diffusion coefficient (ADC) and ADC map in diagnosis of 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。
Objective To evaluate diagnostic value of diffusion-weighted imaging (DWI) and perfusion-weighted imaging(PWI) in acute cerebral ischemia.
目的：确定脑梗死磁共振弥散加权成像(DWI)信号改变和近似弥散系数(adc)的时间演变规律。
Aim: To determine the time course of signal intensity changes and the apparent diffusion coefficient (ADC) abnormality on MR diffusion weighted imaging (DWI) after cerebral infarction.
结果磁共振弥散加权成像通过测量肝脏内的水分子弥散运动，从而了解肝脏局灶性和弥漫性病变与肝脏正常结构和功能的差异。
Results OWI could demonstrate the normal and abnormal structure and function through measuring the diffusion motions of water molecule in the liver.
结果磁共振弥散加权成像通过测量肝脏内的水分子弥散运动，从而了解肝脏局灶性和弥漫性病变与肝脏正常结构和功能的差异。
Results DWI could demonstrate the normal and abnormal structure and function through measuring the diffusion motions of water molecule in the liver.
结果磁共振弥散加权成像通过测量肝脏内的水分子弥散运动，从而了解肝脏局灶性和弥漫性病变与肝脏正常结构和功能的差异。
Results DWI could demonstrate the normal and abnormal structure and function through measuring the diffusion motions of water molecule in the liver.
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