Relationship between preoperative aortic CTA scan parameters and postoperative aortic remodeling in patients with aortic dissection
Fan Lu
Sun Wei
Li Shuqi
Cui Cong
Abstract：Objective To study the relationship between preoperative aortic CTA scan parameters and postoperative aortic remodeling in patients with aortic dissection(AD).Methods A total of 150 AD patients admitted to Medical Imaging Department of the Second Affiliated Hospital of Zhengzhou University from January 2021 to January 2022 were selected and underwent thoracic aortic cavity repair.After 6 months of follow-up,the postoperative aortic remodeling was counted,and patients with positive aortic remodeling were set as the positive group,and patients with negative aortic remodeling were set as the negative group.The preoperative CTA signs were compared between the two groups.Logistic regression analysis was used to analyze the relationship between preoperative CTA signs and postoperative aortic remodeling.A receiver operating characteristic(ROC)curve was established to evaluate the predictive power of preoperative CTA signs on negative postoperative aortic remodeling.Results All patients were followed up to 6 months after operation.The CTA examination showed that 109 patients(72.67%)with true cavity area accounting for more than 1/2 of the positive plane count were set as the positive group,there were 41 patients(27.33%)whose true cavity area accounted for≤1/2 of the positive plane count and were set as the negative group.Compared with the positive group,the aortic wall thickness was increased(P<0.05),the annular or crescent thickening of the artery wall,the retrograde tear of the ascending aorta and the aortic arch rupture ratio were increased in the negative group(P<0.05).ROC curve showed that the optimal cut-off point of aortic wall thickness for predicting negative postoperative aortic remodeling was 2.17 mm.The AUC of aortic wall thickness,annular or crescent thickening,retrograde tear of ascending aorta,and aortic arch rupture for predicting negative postoperative aortic remodeling were 0.790,0.731,0.751,and 0.799,respectively.Conclusion Preoperative aortic CTA scan parameters in AD patients are closely related to postoperative aortic remodeling,aortic wall thickness,arterial wall annular or crescent thickening,ascending aorta retrograde tear and aortic arch rupture.It can provide a reference basis for clinical evaluation of the prognosis of the disease.
Keywords：Aortic dissectionCT angiographyAortic remodeling
Publication Date：2023-10-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1199-1202 )