title: The influence of downstream branching arteries on upstream haemodynamics.
abstract: The accuracy and usefulness of computed flow data in an artery is dependent on the initial geometry, which is in turn dependent on image quality. Due to the resolution of the images, smaller branching arteries are often not captured with computed tomography (CT), and thus neglected in flow simulations. Here, we used a high-quality CT dataset of an isolated common iliac aneurysm, where multiple small branches of the internal iliac artery were evident. Simulations were performed both with and without these branches. Results show that the haemodynamics in the common iliac artery were very similar for both cases, with any observable differences isolated to the regions local to the small branching arteries. Therefore, accounting for small downstream arteries may not be vital to accurate computations of upstream flow.
authors: Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, Perth, Australia; Intelligent Systems for Medicine Laboratory, School of Mechanical and Chemical Engineering, The University of Western Australia, Australia.
authors: Lachlan J
authors: LJ
authors: Kelsey
authors: Intelligent Systems for Medicine Laboratory, School of Mechanical and Chemical Engineering, The University of Western Australia, Australia; Institute of Mechanics and Advanced Materials, Cardiff University, UK.
authors: Karol
authors: K
authors: Miller
authors: Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, Perth, Australia; School of Surgery, The University of Western Australia, Australia.
authors: Paul E
authors: PE
authors: Norman
authors: Vascular Surgery Research Group, Imperial College London, UK.
authors: Janet T
authors: JT
authors: Powell
authors: Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, Perth, Australia; School of Mechanical and Chemical Engineering, The University of Western Australia, Australia; Centre for Cardiovascular Science, The University of Edinburgh, UK. Electronic address: Barry.Doyle@uwa.edu.au.
authors: Barry J
authors: BJ
authors: Doyle
mesh_terms: D000369:Aged, 80 and over; D006439:Hemodynamics; D006801:Humans; D017543:Iliac Aneurysm / Q000000981:diagnostic imaging / Q000503:physiopathology*; D007083:Iliac Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008297:Male; D014057:Tomography, X-Ray Computed
keywords: Computational fluid dynamics; Iliac aneurysm; Wall shear stress