Comparison of the Diagnostic Value of Magnetic Susceptibility-Weighted Imaging and Routine Magnetic Resonance Imaging in Cerebral Amyloid Angiopathy Hemorrhage

To investigate the diagnostic value of the magnetic susceptibility-weighted imaging and routine magnetic resonance imaging in cerebral amyloid angiopathy hemorrhage. A total of 64 patients with suspected cerebral amyloid angiopathy hemorrhage diagnosed in our hospital from January 2018 to January 2019 were included in the study. All patients were diagnosed by routine magnetic resonance imaging and magnetic susceptibility-weighted imaging before the operation. The consistency of the two detection methods in the diagnosis of cerebral amyloid angiopathy hemorrhage and the difference in image quality were analyzed. Multivariate Logistic regression analysis was used to analyze the preoperative imaging features of routine magnetic resonance imaging and magnetic susceptibility-weighted imaging and the risk of focal hemorrhage. The qualified rate of lesions scanned by magnetic susceptibility-weighted imaging was 93.75 %, which was higher than that of routine magnetic resonance imaging (85.94 %), the difference was statistically significant (p<0.05). Based on the postoperative pathological results, the sensitivity of routine magnetic resonance imaging and magnetic susceptibility-weighted imaging was 67.50 % and 90.25 %, respectively. The specificity was 25.00 % and 75.00 %, and the coincidence rate was 85.94 % and 93.75 %. The Kappa index is 0.279, and the consistency between them is poor. The results of the regression analysis showed that the independent predictive signals of the focal hemorrhage in patients with cerebral amyloid angiopathy hemorrhage were patchy signal and multiple clear edge low signal (OR=4.356, p=0.017; OR=3.763, p=0.021). Magnetic susceptibility-weighted imaging has obvious advantages in detecting the micro cerebral hemorrhage, and it can show the characteristics of the cerebral amyloid angiopathy multiple hemorrhages, and its diagnostic value was better than that of routine routine magnetic resonance imaging.