Hemodynamic Analysis on Proximal End of the Aortic Dissection with Different Rupture Shapes

Yu Xue; Qingsong Han; Yongzhi Gong; Guizhen Bao; Shijie Guo; Haiquan Feng; Xiaotian Wang; Wei Wei

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Hemodynamic Analysis on Proximal End of the Aortic Dissection with Different Rupture Shapes

VernacularTitle:主动脉夹层近心端不同破口形态下的血流动力学分析
Author: Yu XUE ¹ ; Qingsong HAN ¹ ; Yongzhi GONG ¹ ; Guizhen BAO ¹ ; Shijie GUO ¹ ; Haiquan FENG ¹ ; Xiaotian WANG ² ; Wei WEI ²
Author Information

1. School of Mechanical Engineering, Inner Mongolia University of Technology
2. Department of Vascular Surgery, the First Affiliated Hospital of University of Science and Technology of Chin
Publication Type:Journal Article
Keywords: aortic dissection; rupture shape; computational fluid dynamics (CFD); three-dimensional （3D） reconstruction
From: Journal of Medical Biomechanics 2021;36(5):E751-E756
CountryChina
Language:Chinese
Abstract: Objective To explore hemodynamic performance of the aortic dissection after lesions, so as to provide a more scientific basis for patient treatment. Methods Based on computed tomography angiography (CTA) image data from a patient with complex Stanford B-type aortic dissection, the personalized aortic dissection models with different rupture shapes (H-type, O-type, and V-type) at proximal end of the aortic dissection were established. Combined with computational fluid dynamics (CFD) and morphological analysis method, distributions of the velocity at rupture section, the blood flow, the wall pressure and the wall shear stress (WSS) were analyzed. Results The flow velocity, the highest pressure difference and the WSS proportion at entrance of the H-shaped rupture showed larger hemodynamic parameters than those of the other two types. The risk of dissection rupture for type H was the largest, while type V was in the middle, and type O was the smallest. Conclusions This study provides an effective reference for further numerical analysis the cases and formulation of treatment plans.