Temporal analysis of the depolarization wave of healed myocardial infarction in body surface potential mapping

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
Paula VesterinenLauri Toivonen

Abstract

We studied the ability of different time segments of the depolarization wave recorded with body surface potential mapping (BSPM) to detect and localize myocardial infarction (MI). BSPM was recorded in 24 patients with remote MI and in 24 healthy controls. Cine and contrast-enhanced magnetic resonance imaging (MRI) was used as a reference method. Patients were grouped according to anatomical location of their MI. The QRS complex was divided into six temporally equal segments, for which time integrals were calculated. The time segments of the QRS complex showed different MI detection capability depending on MI location. For anterior infarction the second segment of the QRS complex was the best in MI detection and the optimal area was on the right inferior quadrant of the thorax (time integral average -1.5 +/- 1.8 mVms patients, 1.0 +/- 1.6 mVms controls, P = 0.002). For lateral infarction the first segment of the QRS complex performed best and the optimal area for MI detection was the left fourth intercostal area (time integral average 1.8 +/- 1.0 mVms patients, 0.7 +/- 0.5 mVms controls, P = 0.024). For inferior and posterior MI the mid-phases of the QRS complex were the best and the optimal area was the mid-inferior area of the...Continue Reading

References

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Citations

Feb 6, 2010·Annals of Biomedical Engineering·Raz MiriOlaf Dössel
Aug 31, 2006·Cardiology Clinics·Elin TrägårdhOlle Pahlm
Mar 27, 2007·International Journal of Cardiology·Paula VesterinenLauri Toivonen
Jul 9, 2005·Journal of Electrocardiology·Paula VesterinenLauri Toivonen
Aug 5, 2011·Physiological Research·K KozlíkováJ Bulas

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