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Non-invasive electrocardiographic imaging in patients with idiopathic ventricular fibrillation : number and placement of body-surface electrodes for the assessment of epicardial repolarization

Schipaanboord, D.J.M. (2020) Non-invasive electrocardiographic imaging in patients with idiopathic ventricular fibrillation : number and placement of body-surface electrodes for the assessment of epicardial repolarization.

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Abstract:Non-invasive electrocardiographic imaging (ECGI) might be valuable to gain insight in the pathogenesis of idiopathic ventricular fibrillation (IVF). However, no consensus exists on the necessary number and distribution of body-surface electrodes for high quality ECGI in patients with IVF. Therefore, the objective of this study was to assess how the body-surface potentials measurement should be performed for high quality ECGI regarding the assessment of regional repolarization differences. Data of ten ECGI measurements, performed on IVF patients with a 184-electrodes set-up, were used. Smaller electrode set-ups were selected from the 184-electrodes set-ups. First, the ECGI quality of a 64-electrodes, 62-electrodes and the standard 9-electrodes set-up were investigated in comparison to the 184-electrodes set-up. Second, the necessary number and positioning of the body-surface electrodes was investigated by removal and addition of electrodes to the 64-electrodes set-up. The results suggested that the 64-electrodes and 62-electrodes set-up are sufficient and that the standard 9-electrodes set-up is insufficient. A lower limit of number of electrodes was found around 45 electrodes. The left anterior quadrant of the thorax and inferior torso area proved of value for the inverse reconstruction, whereas the right lateral side and posterior side of the thorax proved of less value.
Item Type:Essay (Master)
Faculty:TNW: Science and Technology
Subject:44 medicine, 50 technical science in general
Programme:Technical Medicine MSc (60033)
Link to this item:https://purl.utwente.nl/essays/84444
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