Uncertainty visualization in forward and inverse cardiac models

Update item information
Publication Type pre-print
School or College Scientific Computing and Imaging Institute
Department Computing, School of
Creator Potter, Kristin Carrie
Other Author Burton, Brett M.; Erem, Burak; Rosen, Paul; Johnson, Chris R.; Brooks, Dana H.; Macleod, Rob S.
Title Uncertainty visualization in forward and inverse cardiac models
Date 2013-01-01
Description Quantification and visualization of uncertainty in cardiac forward and inverse problems with complex geometries is subject to various challenges. Specific to visualization is the observation that occlusion and clutter obscure important regions of interest, making visual assessment difficult. In order to overcome these limitations in uncertainty visualization, we have developed and implemented a collection of novel approaches. To highlight the utility of these techniques, we evaluated the uncertainty associated with two examples of modeling myocardial activity. In one case we studied cardiac potentials during the repolarization phase as a function of variability in tissue conductivities of the ischemic heart (forward case). In a second case, we evaluated uncertainty in reconstructed activation times on the epicardium resulting from variation in the control parameter of Tikhonov regularization (inverse case). To overcome difficulties associated with uncertainty visualization, we implemented linked-view windows and interactive animation to the two respective cases. Through dimensionality reduction and superimposed mean and standard deviation measures over time, we were able to display key features in large ensembles of data and highlight regions of interest where larger uncertainties exist.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Volume 40
First Page 57
Last Page 60
Language eng
Bibliographic Citation Burton, B.M., Erem, B., Potter, K., Rosen, P., Johnson, C. R., Brooks, D. H., & Macleod, R. S. (2013). Uncertainty visualization in forward and inverse cardiac models. Computing in Cardiology, 40, 57-60.
Rights Management (c)2013 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 2,425,155 bytes
Identifier uspace,18566
ARK ark:/87278/s6cr93gf
Setname ir_uspace
Date Created 2014-04-25
Date Modified 2021-05-06
ID 712505
Reference URL https://collections.lib.utah.edu/ark:/87278/s6cr93gf
Back to Search Results