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- W4316097156 abstract "Electrocardiographic Imaging (ECGI) is a promising tool to non-invasively map the electrical activity of the heart using body surface potentials (BSPs) and the patient specific anatomical data. One of the first steps of ECGI is the segmentation of the heart and torso geometries. In the clinical practice, the segmentation procedure is not fully-automated yet and is in consequence operator-dependent. We expect that the inter-operator variation in cardiac segmentation would influence the ECGI solution. This effect remains however non quantified. In the present work, we study the effect of segmentation variability on the ECGI estimation of the cardiac activity with 262 shape models generated from fifteen different segmentations. Therefore, we designed two test cases: with and without shape model uncertainty. Moreover, we used four cases for ectopic ventricular excitation and compared the ECGI results in terms of reconstructed activation times and excitation origins. The preliminary results indicate that a small variation of the activation maps can be observed with a model uncertainty but no significant effect on the source localization is observed." @default.
- W4316097156 created "2023-01-14" @default.
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- W4316097156 date "2022-12-31" @default.
- W4316097156 modified "2023-10-16" @default.
- W4316097156 title "Effect of Segmentation Uncertainty on the ECGI Inverse Problem Solution and Source Localization" @default.
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- W4316097156 doi "https://doi.org/10.22489/cinc.2022.275" @default.
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