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.

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。

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Result: perfusion abnormality and left ventricular hypertrophy presented the image characteristics of stress myocardial perfusion imaging in 59 patients with essential hypertension.

结果：59例原发性高血压患者负荷心肌灌注显像的影像表现为灌注异常和节段性心肌肥厚，具有多壁段、多病灶的特点。

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