目的探讨磁共振弥散加权成像对脑转移瘤的诊断价值。
ObjectiveTo explore the value of DWI in the diagnosis of brain metastatic tumors.
重症急性酒精中毒死亡组大鼠脑的磁共振弥散加权成像均出现高强度信号，表观弥散系数值在短时间内骤降。
Abnormal high signal can also be seen on DWI image of severe alcoholism dead group, and ADC value showed a sudden drop in a short term.
结果未注酒精组大鼠脑的磁共振弥散加权成像未见异常信号改变，其表观弥散常数值亦未见随时间而改变。
Resultsthere were no abnormal signals on DWI image of non alcohol injection group, and ADC value didn't change at different point of time.
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