Multichannel ECG body surface mapping consists of synchronously recording unipolar electrocardiograms at a variety of points on the surface of the chest, visually depicting the ECG recording results in the form of isopotential and other isoparametric maps, and diagnostically interpreting them. ECG body surface mapping finds its limited use in diagnostics of heart rhythm irregularities, predictions of life-threatening ventricular tachyarrhythmias, and in IHD.
ECG body surface mapping methodology is considered being more informative than standard electrocardiography in 12 leads. However, its diagnostic value is inferior to that of epicardial mapping based on the solution to the inverse electrocardiography problem. ECG body surface mapping methodology does not require a CT or MRI study of the heart, since a mean model of the human torso is used for mapping.
Indications for ECG Body Surface Mapping
Diagnosis of Heart Rhythm Irregularities:
- Rough topical diagnosis of accessory atrioventricular connections associated with symptomatic WPW syndrome.
- Rough topical diagnosis of atrial and ventricular arrhythmias.
- Prognosis of the origination of life-threatening ventricular tachyarrhythmias.
- Limited research application in electrophysiological mechanisms of atrial flutters and fibrillations.
Contraindications for Body Surface Mapping:
- Excoriation of the skin integuments on the chest surface.
- Skin diseases.
- Allergic reactions to the disposable ECG recording electrode components that contact the skin.