Numerical simulation of two-phase blood flow after thoracic endovascular aortic repair with in situ fenestration

doi:10.7523/j.issn.2095-6134.2020.02.007

›› 2020, Vol. 37 ›› Issue (2): 192-197.DOI: 10.7523/j.issn.2095-6134.2020.02.007

• Columns of Multi-phase Flow • Previous Articles Next Articles

Numerical simulation of two-phase blood flow after thoracic endovascular aortic repair with in situ fenestration

QIAO Yonghui¹, LUO Kun¹, FAN Jianren¹, MAO Le², ZHU Ting²

1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;
2. Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China

Received:2019-01-17 Revised:2019-03-18 Online:2020-03-15

Abstract

Abstract: Thoracic aortic dissection is a cardiovascular disease which seriously endangers human health. The main clinical treatment is thoracic endovascular aortic repair (TEAVR). TEVAR with in situ fenestration technique (ISF-TEVAR) can be used to treat complex cases involving the aortic arch and its branches. In this study, aortic geometry model of a patient suffering from aortic dissection treated by ISF-TEVAR was reconstructed, and two-phase blood flow simulation was carried out. The efficacy of ISF-TEVAR was quantitatively explored by assessing the hemodynamics. Meanwhile, the protruding length of the fenestration stent in the aortic arch was shortened by virtual surgery, and the "half protrusion" and "no protrusion" postoperative models were compared to reveal the effect of the protruding length on postoperative blood flow. Results show that appropriately shortening the protrusion length of the stent-graft improves the efficacy of ISF-TEVAR.

Key words: aortic dissection, thoracic endovascular aortic repair, in situ fenestration, left subclavian artery, two-phase flow

CLC Number:

R318.01

QIAO Yonghui, LUO Kun, FAN Jianren, MAO Le, ZHU Ting. Numerical simulation of two-phase blood flow after thoracic endovascular aortic repair with in situ fenestration[J]. , 2020, 37(2): 192-197.

References

[1] Nienaber C A, Divchev D, Palisch H, et al. Early and late management of type B aortic dissection[J]. Heart, 2014, 100(19):1491-1497.
[2] Mcwilliams R G, Murphy M, Hartley D, et al. In situ stent-graft fenestration to preserve the left subclavian artery[J]. J Endovasc Ther, 2004, 11(2):170-174.
[3] Glorion M, Coscas R, Mcwilliams R G, et al. A comprehensive review of in situ fenestration of aortic endografts[J]. Eur J Vasc Endovasc Surg, 2016, 52(6):787-800.
[4] Kandail H, Hamady M, Xu X Y. Comparison of blood flow in branched and fenestrated stent-grafts for endovascular repair of abdominal aortic aneurysms[J]. J Endovasc Ther, 2015, 22(4):578-590.
[5] Jung J, Hassanein A, Lyczkowski R W. Hemodynamic computation using multiphase flow dynamics in a right coronary artery[J]. Ann Biomed Eng, 2006, 34(3):393.
[6] Schiller L. A drag coefficient correlation[J]. Zeit Ver Deutsch Ing, 1933, 77:318-320.
[7] 曾宇杰, 罗坤, 樊建人, 等. 主动脉夹层血液两相流动数值模拟分析[J]. 工程热物理学报, 2016, 37(4):780-784.
[8] Gallo D, Lefieux A, Morganti S, et al. A patient-specific follow up study of the impact of thoracic endovascular repair (TEVAR) on aortic anatomy and on post-operative hemodynamics[J]. Computers & Fluids, 2016, 141:54-61.
[9] Dill D B, Costill D L. Calculation of percentage changes in volumes of blood, plasma, and red cells in dehydration[J]. J Appl Physiol, 1974, 37(2):247-248.
[10] Pirola S, Cheng Z, Jarral O A, et al. On the choice of outlet boundary conditions for patient-specific analysis of aortic flow using computational fluid dynamics[J]. J Biomech, 2017, 60:15-21.
[11] Ansys C. Solver theory guide[J]. Ansys CFX Release, 2006, 11:1996-2006.
[12] Cheng Z, Riga C, Chan J, et al. Initial findings and potential applicability of computational simulation of the aorta in acute type B dissection[J]. J Vasc Surg, 2013, 57(2):35S-43S.
[13] Xie H, Zhang Y. The effect of red blood cells on blood heat transfer[J]. International Journal of Heat and Mass Transfer, 2017, 113:840-849.

Numerical simulation of two-phase blood flow after thoracic endovascular aortic repair with in situ fenestration

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 4

Recommended Articles

Metrics

Comments

[1]	LIU Hao, TAN Chao, DONG Feng. High resolution reconstruction of ultrasonic tomography based on Gaussian regression prediction [J]. , 2020, 37(2): 234-241.
[2]	WANG Xin, DONG Chuanshuai, ZHANG Xiaoling, YUE Xiaoqing, HE Limin. Experimental study on heat transfer and interfacial distribution of air-water slug flow in cooling process [J]. , 2017, 34(2): 232-236.
[3]	WU Hao, TAN Chao, DONG Feng. Capacitance-conductance sensor for water holdup measurement in oil-water two-phase flow [J]. , 2017, 34(2): 237-243.
[4]	ZHANG Xinyu, XIE Jing, YU Bo. Numerical simulation on the gas-liquid two-phase flow in the direct commissioning process of a hilly pipeline [J]. , 2017, 34(2): 265-272.