Spatio-temporal wavelet analysis of body surface potential maps during PTCA-induced ischemia

Body surface potential maps taken during PTCA procedures are analyzed using the spatio-temporal wavelet transform (WT). Results are compared to a standard technique, integral mapping. The wavelet transform (WT) allows greater temporal resolution than integral maps, reproducing integral patterns but revealing additional information over smaller time scales. The spatial WT provides a compact representation of the maps to be used for quantification and pattern recognition