✦ LIBER ✦

An algorithm for the quantification of ST-T segment variability

✍ Scribed by Saul E. Greenhut; Benjamin H. Chadi; Jong W. Lee; Janice M. Jenkins; John M. Nicklas

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 631 KB
Volume: 22
Category: Article
ISSN: 0010-4809
DOI: 10.1016/0010-4809(89)90029-3

No coin nor oath required. For personal study only.

✦ Synopsis

A template boundary algorithm which quantitatively determines repolarization (ST-T segment) variability in a normal population has been developed. The algorithm defines an initial ST-T template for comparison with successive beats. Variability is quantified using boundary limits around the template which are widened, when necessary, to included incoming ST-T segments. The boundaries at the end of each hour are stored and the collection of boundaries over a set of normal subjects quantifies the normal variation over the entire ST-T segment. The algorithm can be used to determine prospectively normal ST-T variability based on a regression analysis of R-wave or T-wave amplitude, and QT interval. Application of these boundary predictions should be useful in distinguishing repolarization changes secondary to ischemia from normal variability.

Q 1989 Academic press, IK.

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