Blood flow analysis of the aortic arch using computational fluid dynamics

European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery
Satoshi NumataHitoshi Yaku

Abstract

To obtain predictive information regarding aortic disease, we evaluated how blood flow inside the aortic arch was influenced by thoracic aortic aneurysms. In addition, to reveal the optimal intraoperative management in these cases, we examined blood flow during right subclavian arterial (rSCA) perfusion using computational fluid dynamics (CFD). Patient-specific models of the aortic arch were made with six different patterns based on the computed tomographic images. CFD models with finite volume methods were created to simulate the physiological pulsatile flow including the peripheral reflection wave, characteristic impedance and autonomous regulation system. Flow stream patterns, wall shear stress (WSS) and the oscillatory shear index (OSI) were calculated during one cardiac cycle. Furthermore, flow streamlines during rSCA perfusion were simulated under different perfusion flows. Aortic dilatation caused vortical disturbed flow in a dilated space, resulting in turbulent flow not only inside the aneurysm but also in the proximal and/or distal normal aortic portion. In patients with a dilated thoracic aorta, there was a helical spiral flow with a circumferential vortex in systole. In patients with an arch aneurysm, turbulent flow...Continue Reading

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Citations

Jan 29, 2016·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Michael MarklAlex J Barker
Sep 17, 2016·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Pietro Giorgio MalvindiSteven Livesey
Sep 21, 2017·General Thoracic and Cardiovascular Surgery·Keiichi ItataniHitoshi Yaku
Aug 12, 2018·Journal of Biomechanical Engineering·Katia CapelliniSimona Celi
Nov 1, 2018·Asian Cardiovascular & Thoracic Annals·Pietro Giorgio MalvindiLaszlo Göbölös
Feb 23, 2020·International Journal for Numerical Methods in Biomedical Engineering·Raja JayendiranStéphane Avril
Jul 30, 2020·Computational and Mathematical Methods in Medicine·JiFeng NanMuhammad E H Chowdhury
Mar 16, 2018·Frontiers in Physiology·Laurent SchwartzJorgelindo da Veiga Moreira
Oct 20, 2017·Interactive Cardiovascular and Thoracic Surgery·Nobuyasu KatoHitoshi Yaku
Oct 20, 2017·Interactive Cardiovascular and Thoracic Surgery·Shohei MiyazakiNaoki Yoshimura
Jul 17, 2018·Computational and Mathematical Methods in Medicine·J FebinaN M Sudharsan
Mar 7, 2019·Journal of Biomechanical Engineering·Parastou EslamiRajat Mittal
Jun 2, 2020·Frontiers in Physiology·Sarah N LippCraig J Goergen
Nov 26, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Fraser M Callaghan, Stuart M Grieve
Oct 31, 2020·General Thoracic and Cardiovascular Surgery·Takashi SasakiTakashi Nitta
Nov 3, 2020·Interactive Cardiovascular and Thoracic Surgery·Tomohito KanzakiAkihiko Takahashi
Feb 24, 2021·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Yu HohriHitoshi Yaku
Nov 18, 2018·The Journal of Thoracic and Cardiovascular Surgery·Chikara Ueki, Hiroshi Tsuneyoshi
Jun 19, 2021·Frontiers in Cardiovascular Medicine·Lauren JohnstonAsimina Kazakidi
Sep 14, 2021·The Journal of International Medical Research·Huai Wu YuanLi Hua Chen
Nov 4, 2021·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Feng LiuWei Guo

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