A bootstrap procedure for classifying QRST integral maps

Author

Ciarlini, P. ; Regoliosi, G. ; Stilli, D. ; Musso, E.

Author_Institution

Instituto per le Applicazioni del Calcolo, CNR, Rome, Italy

fYear

1991

fDate

23-26 Sep 1991

Firstpage

553

Lastpage

556

Abstract

The analysis of beat-to-beat variability of QRST integral maps (V-IM) enabled the authors to detect specific changes of the cardiac potential field in hypertrophic subjects with high arrhythmia vulnerability. A classification of QRST integral maps was attempted by splitting the variability of maps into various components, submitting experimental data to linear discriminant analysis (ADL) and estimating the relative bias by means of a bootstrap procedure. The definition of V-IM makes it possible to consider time- and space-dependent effects. ADL was applied to two components of V-IM relating to the scale and shape of the signals, and a correct classification was achieved in 100% of the cases

Keywords

electrocardiography; waveform analysis; QRST integral maps classification; arrhythmia vulnerability; beat-to-beat variability; bootstrap procedure; cardiac potential field; hypertrophic subjects; linear discriminant analysis; relative bias; signal scale; signal shape; space-dependent effects; time-dependent effects; Animals; Cancer; Electrocardiography; Instruments; Linear discriminant analysis; Rats; Shape; Stress measurement; Telemetry; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1991, Proceedings.

Conference_Location

Venice

Print_ISBN

0-8186-2485-X

Type

conf

DOI

10.1109/CIC.1991.168970

Filename

168970