To Evaluate the Application of Diffusion-Weighted Magnetic Resonance Imaging and Conventional Magnetic Resonance Imaging in the Diagnosis of TIA in the Elderly
Objective:To evaluate the diagnostic value of magnetic resonance diffusion weighted imaging(MR-DWI)and conventional magnetic resonance imaging(MRI)in elderly patients with transient ischemic attack(TIA).Methods:A total of 82 elderly patients with TIA admitted to our hospital from January 2020 to December 2023 were selected.All patients received routine MRI sequence and MR-DWI sequence examination.The detection rates of TIA positive,MR-DWI positive and negative clinical symptoms and stroke occurrence within 7 days of admission were compared between the two methods.Results:The positive detection rate of 82 patients by MR-DWI sequence was 62.20%,higher than that of conventional MRI 46.34%,the difference was statistically significant(P<0.05).The movement disorder,the number of attacks,the duration of symptoms and the time from onset to MR-DWI examination in patients with positive MR-DWI sequences were significantly different from those with negative MR-DWI sequences(P<0.05).Within 7 days after admission,a total of 25 strokes occurred in 82 patients,among which the detection rate of stroke with MR-DWI sequence was 23.17%,higher than that with conventional MRI(7.32%),with statistical significance(P<0.05).Conclusion:MR-DWI is more accurate than conventional MRI,and has higher clinical value in the diagnosis of elderly patients with TIA.
diffusion-weighted magnetic resonance imagingmagnetic resonance imagingtransient ischemic attack