Objective  To investigate the value of diffusion-weighted magnetic resonance imaging (DWI) in the diagnosis of acute ischemic cerebrovascular disease.

  Methods  A total of 64 patients with acute ischemic cerebrovascular disease were selected. All patients underwent CT and DWI. The accuracy of the two methods and the detection rate of lesions were compared.

  Results  The accuracy of DWI scan was significantly higher than that of CT scan (P < 0.05). The detection rate of DWI in acute cerebral infarction was significantly higher than that of routine sequence (P < 0.05). All patients showed high signal intensity in DWI. The DWI of patients with less than 2 hours of onset showed slightly high signal intensity, and the apparent diffusion coefficient (ADC) image showed low signal intensity. The DWI of patients with 2 to 6 hours of onset showed high signal intensity and ADC image showed low signal intensity. The DWI of patients with more than 6 hours of onset showed high signal intensity, and ADC image showed low signal intensity.

  Conclusion  Diffusion-weighted magnetic resonance imaging has a high accuracy in the diagnosis of acute ischemic cerebrovascular disease, which can provide references for the treatment of the disease.