Abstract:Objective To investigate the effect of multislice CT angiography (CTA) on the in-hospital survival of patients with aortic dissection. Methods The clinical data of 63 patients with aortic dissection who were treated in our hospital from January 2013 to December 2017 were analyzed retrospectively. All the patients were examined by CTA. Eight patients were treated by interventional procedure and 55 patients received conservative medical treatment. Seventeen patients died during hospitalization as the death group and the rest as the survival group (n = 46). Univariate and Logistic multivariate analysis of the relationship between CTA imaging findings and hospital mortality in patients with aortic dissection. Results In the death group, the incidence of the number of affected branch vessels ≥3, pleural effusion, pericardial effusion, the Stanford classification A and false cavity tear ranges ≥3 were higher than those in survival group (P < 0.05). The results showed that the number of affected branch vessels ≥3 (Ol ^ R=1.737, 95% CI: 2.397, 4.184) and the false lumen tear ranges ≥3 (Ol ^ R=3.522, 95% CI: 2.025, 3.987) were influencing factors of hospital mortality in patients with aortic dissection (P < 0.05). Conclusions CTA images can show true and false lumen, intimal rupture and thrombus in patients with aortic dissection, which has good diagnostic value and reference value for treatment. The number of involved branches and blood vessels ≥3 and the false lumen tear ranges ≥3 were nosocomial death related factors in patients with artery dissection. Therefore, we should strengthen the monitoring of such patients and use timely and effective measures to improve the ho spital’s living conditions.