Effect of Old Infarction on Alberta Stroke Program Early CT Score for Acute Stroke Diagnosis

This study aimed to analyze the effect of CT images including old infarction on the Alberta stroke program early CT score (ASPECTS) for acute stroke diagnosis. Location of acute and old infarction through automatically calculated ASPECTS and diffusion weighted image interpretation of patients who have undergone both CT scan and diffusion weighted image MRI for acute stroke diagnosis among patients with suspected cerebral infarction who visited the emergency room After comparison, it was determined whether the location of old infarction had an effect on ASPECTS. The Pearson chi-square test was analyzed for the ASPECT score according to the presence or absence of cerebral infarction, and SPSS version 28.0 was used as the analysis program, and it was judged to be significant when the P value was less than 0.05. As a result of this study, in the analysis of whether old infarction affects ASPECTS, chronic cerebral infarction showed an effect on ASPECTS in the group divided into 10, 9, 8, and 7 points or less, and the group divided into 10 and 9 points. However, in the analysis of the groups with scores of 9, 8, and 7 or less, excluding 10, and the group divided into 8 or more and 7 or less, old infarction did not show any effect on ASPECTS. In conclusion, it is believed that complementary research is needed to diagnose acute stroke and predict prognosis in patients with various brain diseases using an improved artificial intelligence program through large-scale research in ASPECTS.