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Conference Papers Year : 2022

Segmentation Uncertainty Quantification in Cardiac Propagation Models


A key part of patient-specific cardiac simulations is segmentation, yet the impact of this subjective and errorprone process hasn't been quantified in most simulation pipelines. In this study we quantify the dependence of a cardiac propagation model on from segmentation variability. We used statistical shape modeling and polynomial Chaos (PC) to capture segmentation variability dependence and applied its affects to a propagation model. We evaluated the predicted local activation times (LATs) an body surface potentials (BSPs) from two modeling pipelines: an EIkonal propagation model and a surfacebased fastest route model. The predicted uncertainty due to segmentation shape variability was distributed near the base of the heart and near high amplitude torso potential regions. Our results suggest that modeling pipelines may have to accommodate segmentation errors if regions of interest correspond to high segmentation error. Further, even small errors could proliferate if modeling results are used to to feed further computations, such as ECGI.
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Dates and versions

hal-03933769 , version 1 (10-01-2023)


  • HAL Id : hal-03933769 , version 1


Jess D Tate, Nejib Zemzemi, Shireen Elhabian, Beáta Ondrusová, Machteld Boonstra, et al.. Segmentation Uncertainty Quantification in Cardiac Propagation Models. CinC 2022 - 49th Computing in Cardiology Conference, Sep 2022, Tampere, Finland. ⟨hal-03933769⟩
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