Noninvasive identification of two lesions with local repolarization changes using two dipoles in inverse solution simulation study

Svehlikova, Jana; Teplan, Michal; Tyšler, Milan

doi:10.1016/j.compbiomed.2014.11.020

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…In this study, the equivalent heart generator is assumed in the form of a single dipole which can represent local changes in the activation of the heart volume. This approach was used for the localization of small ischemic lesions in the ventricles [13], [14] and also for the localization of undesired premature ventricular activity [15]. The methods were studied mainly on simulated data or data obtained during experiments with animal hearts in the torso tank [16], so the signals were not measured from real human objects.…”

Section: Introductionmentioning

confidence: 99%

The Importance of ECG Offset Correction for Premature Ventricular Contraction Origin Localization from Clinical Data

Svehlikova

Přibilová

Zelinka

et al. 2022

Measurement Science Review

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In this study, the inverse solution with a single dipole was computed to localize the premature ventricular contraction (PVC) origin from long term multiple leads ECG measurements on fourteen patients. The stability of the obtained results was studied with respect to the preprocessing of signals used as an input to the inverse solution and the complexity of the torso model. Two methods were used for the baseline drift removal. After an averaging of the heartbeats, the influence of the retention or elimination of the remaining offset at the beginning of the PVC signal was examined. The inverse computations were performed using both homogeneous and inhomogeneous patient-specific torso models. It was shown that the remaining offset in the averaged signals at the beginning of the PVC signal had the most significant impact on the stability of the resulting position within the ventricles. Its elimination stabilizes the location of the results, decreases the sensitivity to the torso model complexity and decreases the sensitivity to the primary baseline drift removal method. The additional offset correction decreased the mean distance between the results for all patients from 17-18 mm to 1-2 mm, regardless of the baseline drift removal method or the torso model complexity.

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Section: Introductionmentioning

confidence: 99%

The Importance of ECG Offset Correction for Premature Ventricular Contraction Origin Localization from Clinical Data

Svehlikova

Přibilová

Zelinka

et al. 2022

Measurement Science Review

View full text Add to dashboard Cite

show abstract

Noninvasive electrocardiographic imaging with low-rank and non-local total variation regularization

Liu

2020

Pattern Recognition Letters

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Noninvasive Imaging of Epicardial and Endocardial Potentials With Low Rank and Sparsity Constraints

Fang

et al. 2019

IEEE Trans. Biomed. Eng.

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Noninvasive identification of two lesions with local repolarization changes using two dipoles in inverse solution simulation study

Cited by 3 publications

References 31 publications

The Importance of ECG Offset Correction for Premature Ventricular Contraction Origin Localization from Clinical Data

The Importance of ECG Offset Correction for Premature Ventricular Contraction Origin Localization from Clinical Data

Noninvasive electrocardiographic imaging with low-rank and non-local total variation regularization

Noninvasive Imaging of Epicardial and Endocardial Potentials With Low Rank and Sparsity Constraints

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