[Body surface heart potential mapping in the limited lead system].
A goal of the presented study was to analyze and assess the information collected in the assigned electrocardiographic (ECG) arrangement, constituting a "transition" between the two systems of which one is a 87-lead cylindrical system, and the second one is a 30-lead spherical system. The transient 30-electrode arrangement has been selected from the 87-lead ECG network with the arbitrarily assigned electrodes location, which corresponded to the spherical network called "diamentoid". A subject of the visual inspection and analysis were isopotential and isointegral maps created in the three following lead systems: "total", 87-lead cylindrical system; "transient", 30-lead (limited lead) system, and 30-lead spherical system derived from the latter as a result of the diamentoid transformation. The performed comparisons were focused on determining the similarities and differences between the maps gained from the "full" and "limited" lead systems. The maps representing the entire cardiac cycle, constructed on the base of the ECG recordings obtained from the 53 patients, were assessed. The maps, covering the complex QRS divided in the eight portions, were subjected to the detailed analysis. As the result of the comparative analysis of the body surface maps generated in the given three lead systems, it could be concluded that isopotential and isointegral maps from the both 30-lead systems are capable to retain the significant information concerning the features of potentials distribution, as compared with the data provided by the 87-lead system.
Nowak
Barbara
B
Zakład Patofizjologii Akademii Medycznej im. Piastów Slaskich we Wrocławiu.
Jagielski
Józef
J
Sobieszczańska
Małgorzata
M
D000328:Adult; D000368:Aged; D018780:Body Surface Potential Mapping / Q000379:methods; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged