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Accession Number:
ADA056532
Title:
Computer Identification of P Waves in Electrocardiograms.
Corporate Author:
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
Report Date:
1977-12-01
Abstract:
Algorithms to locate and identify the P wave in single lead electrocardiograms ECGs are developed and evaluated on eighteen 12 second electrocardiogram recordings. The program does not assume that the P wave has any specific time relationship to the occurrence of the QRS complex. The program searches the entire ECG to locate the P wave in any part of the ECG. The program divides the ECG into sections and classifies the sections as P waves or some other wave. The first test selects the sections that have a frequency domain pattern that is similar to a training set P wave. The sections that pass this test are checked for a periodic relationship with past selected sections. If a section was selected at a time assumed to be one P wave period before the present one, the present one will be classified as a P wave. Of the 209 P waves in the ECG records, 123 or 58.85 were located correctly. There were 83 false classifications of sections which were not P waves. Author
Descriptive Note:
Master's thesis,
Pages:
0094
Distribution Statement:
Availability: Document partially illegible.
File Size:
23.99MB
