A review of fluid-structure interaction simulations of prosthetic heart valves

I Borazjani - Journal of long-term effects of medical implants, 2015 - dl.begellhouse.com
Dysfunctional natural heart valves are replaced with prosthetic heart valves through surgery.
However, prosthetic valves are far from ideal. Bioprosthetic heart valves (BHVs) suffer from …

Congenital left ventricular outpouchings: a systematic review of 839 cases and introduction of a novel classification after two centuries

E Malakan Rad, S Awad, ZM Hijazi - Congenital Heart Disease, 2014 - Wiley Online Library
Background Congenital left ventricular outpouchings (LVO s) are reported under five
overlapping and poorly defined terms including left ventricular accessory chamber, left …

A Newton–Krylov method with an approximate analytical Jacobian for implicit solution of Navier–Stokes equations on staggered overset-curvilinear grids with …

H Asgharzadeh, I Borazjani - Journal of computational physics, 2017 - Elsevier
The explicit and semi-implicit schemes in flow simulations involving complex geometries
and moving boundaries suffer from time-step size restriction and low convergence rates …

A non-dimensional parameter for classification of the flow in intracranial aneurysms. II. Patient-specific geometries

H Asgharzadeh, H Asadi, H Meng, I Borazjani - Physics of Fluids, 2019 - pubs.aip.org
ABSTRACT A simple parameter, called the Aneurysm number (An) which is defined as the
ratio of transport to vortex time scales, has been shown to classify the flow mode in simplified …

[HTML][HTML] Automatic segmentation of the left ventricle in echocardiographic images using convolutional neural networks

T Kim, M Hedayat, VV Vaitkus… - … Imaging in Medicine …, 2021 - ncbi.nlm.nih.gov
Background Two-dimensional echocardiography (2D echo) is the most widely used non-
invasive imaging modality due to its fast acquisition time, low cost, and high temporal …

Patient-specific left ventricular flow simulations from transthoracic echocardiography: robustness evaluation and validation against ultrasound doppler and magnetic …

D Larsson, JH Spühler, S Petersson… - IEEE transactions on …, 2017 - ieeexplore.ieee.org
The combination of medical imaging with computational fluid dynamics (CFD) has enabled
the study of 3-D blood flow on a patient-specific level. However, with models based on gated …

[HTML][HTML] ECG-derived spatial QRS-T angle is associated with ICD implantation, mortality and heart failure admissions in patients with LV systolic dysfunction

S Gleeson, YW Liao, C Dugo, A Cave, L Zhou, Z Ayar… - PloS one, 2017 - journals.plos.org
Background Increased spatial QRS-T angle has been shown to predict appropriate
implantable cardioverter defibrilIator (ICD) therapy in patients with left ventricular systolic …

A hybrid echocardiography‐CFD framework for ventricular flow simulations

M Hedayat, TR Patel, T Kim… - International Journal …, 2020 - Wiley Online Library
Image‐based CFD is a powerful tool to study cardiovascular flows while 2D
echocardiography (echo) is the most widely used noninvasive imaging modality for the …

Sharp-interface immersed-boundary method for compressible flows with shock–particle interaction

I Borazjani - AIAA Journal, 2021 - arc.aiaa.org
A sharp-interface immersed-boundary method that does not smear the boundaries, is easy
to implement, and is straightforward in handling the Neumann condition as compared to …

Single calibration multiplane stereo-PIV: the effect of mitral valve orientation on three-dimensional flow in a left ventricle model

H Saaid, P Segers, M Novara, T Claessens… - Experiments in …, 2018 - Springer
The characterization of flow patterns in the left ventricle may help the development and
interpretation of flow-based parameters of cardiac function and (patho-) physiology. Yet, in …