A method including determining a cerebral ischemia region of a patient based on a magnetic resonance diffusion weighted imaging of the patient； determining a DWI gray scale distribution parameter in a region with low ADC values in the magnetic resonance diffusion weighted imaging； and judging whether the DWI in the region with low ADC values in the magnetic resonance diffusion weighted imaging and the ADC values in the region with low ADC values in the magnetic resonance diffusion weighted imaging are mismatched according to the DWI gray scale distribution parameter in the region with low ADC values in the magnetic resonance diffusion weighted imaging is disclosed. The method provides a more scientific and objective basis for making a decision on whether the acute cerebral ischemia patient should be treated with thrombolysis, thereby improving a cure rate of the cerebral ischemia patient.
