Uncertainty quantification of the effects of segmentation variability in ecgi

JD Tate, WW Good, N Zemzemi, M Boonstra… - … on Functional Imaging …, 2021 - Springer
Despite advances in many of the techniques used in Electrocardiographic Imaging (ECGI),
uncertainty remains insufficiently quantified for many aspects of the pipeline. The effect of …

A computational framework for atrioventricular valve modeling using open-source software

W Wu, S Ching, SA Maas… - Journal of …, 2022 - asmedigitalcollection.asme.org
Atrioventricular valve regurgitation is a significant cause of morbidity and mortality in patients
with acquired and congenital cardiac valve disease. Image-derived computational modeling …

Uncertainty quantification of the effect of cardiac position variability in the inverse problem of electrocardiographic imaging

JA Bergquist, B Zenger, LC Rupp… - Physiological …, 2023 - iopscience.iop.org
Objective. Electrocardiographic imaging (ECGI) is a functional imaging modality that
consists of two related problems, the forward problem of reconstructing body surface …

Global sensitivity analysis and uncertainty quantification for simulated atrial electrocardiograms

B Winkler, C Nagel, N Farchmin, S Heidenreich… - Metrology, 2022 - mdpi.com
The numerical modeling of cardiac electrophysiology has reached a mature and advanced
state that allows for quantitative modeling of many clinically relevant processes. As a result …

Uncertainty quantification in simulations of myocardial ischemia

JA Bergquist, B Zenger, LC Rupp… - 2021 Computing in …, 2021 - ieeexplore.ieee.org
Computational models of myocardial ischemia are parameterized using assumptions of
tissue properties and physiological values such as conductivity ratios in cardiac tissue and …

Heart position uncertainty quantification in the inverse problem of ecgi

JA Bergquist, LC Rupp, A Busatto… - 2022 Computing in …, 2022 - ieeexplore.ieee.org
Electrocardiographic imaging (ECGI) is a clinical and research tool for noninvasive
diagnosis of cardiac electrical dysfunction. The position of the heart within the torso is both …

The role of myocardial fiber direction in epicardial activation patterns via uncertainty quantification

LC Rupp, JA Bergquist, B Zenger… - 2021 Computing in …, 2021 - ieeexplore.ieee.org
Fiber structure governs the spread of excitation in the heart; however, little is known about
the effects of physiological variability in fiber orientation on epicardial activation. To …

Segmentation uncertainty quantification in cardiac propagation models

JD Tate, N Zemzemi, S Elhabian… - 2022 Computing in …, 2022 - ieeexplore.ieee.org
A key part of patient-specific cardiac simulations is segmentation, yet the impact of this
subjective and error-prone process hasn't been quantified in most simulation pipelines. In …

Uncertainty Quantification of the Effect of Variable Conductivity in Ventricular Fibrotic Regions on Ventricular Tachycardia

JA Bergquist, M Lange, B Zenger… - 2023 Computing in …, 2023 - ieeexplore.ieee.org
Ventricular tachycardia (VT) is a life-threatening cardiac arrhythmia for which a common
treatment pathway is electroanatomical mapping and ablation. Recent advances in both …

Finite element modeling and simulation of human pelvic system towards a reliable decision support tool: Uncertainty of data behavior laws

TNT Nguyen - 2024 - theses.hal.science
Approximately 0.5 million deaths during childbirth occur annually, as reported by the World
Health Organization (WHO). One prominent cause is complicated obstructed labor, also …