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An Inverse Electrocardiographic Solution with an ON-OFF Model

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4 Author(s)
Barr, R.C. ; Division of Biomedical Engineering, Duke University, Durham, N. C. ; Pilkington, T.C. ; Boineau, J.P. ; Rogers, C.L.

The electrical activity of a dog's heart is modeled as originating in ten regions, called zones, each of which is either completely active or completely inactive at any one time. Using this model, the electrical activation sequence of the dog's heart during QRS is computed from potentials measured on the dog's torso, and from his geometry. The sequence computed is compared with measurements directly from the dog's heart. Additionally, the sequence is recomputed with perturbations in the location of the heart within the torso and with noise added to the torso potential data to see how greatly these changes affect the solution. The results support the possibility of using an ON-OFF model to determine the electrical activity of the heart.

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Biomedical Engineering, IEEE Transactions on  (Volume:BME-17 ,  Issue: 1 )