1. A RELIABLE WAY FOR DIGITIZATION AND INTEGRAL ANALYSIS OF PAPER ELECTROCARDIOGRAM.
- Author
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Taş, Ahmet, Alan, Yaren, Kara, İlke, Sezer, Fatih, Bayhan, Muhammed İkbal, Dönmez, Ali Yekta, Türkmen, Dilara, and Kitaplı, Çağla
- Subjects
ELECTROCARDIOGRAPHY ,DIGITIZATION ,FEASIBILITY studies ,ST elevation myocardial infarction - Abstract
Aims: In this paper, we aim to present our designated digitization tool and interrogate its reliability and feasibility by comparing ST shift, ST area, T-amplitude, and QT interval measurements from three observers. Methods: Fifty ST elevation myocardial infarction electrocardiograms were digitized and analyzed offline by three investigators blindly via in-house developed software in MATLAB environment. Measurements were compared with analysis of variance and Friedman's test, and correlations were quantified via Pearson's and Spearman's tests. Results: Six electrocardiogram records were excluded prior to digitization due to inadequate quality. Mean ST shift (0.19±0.27, 0.21±0.27, 0.19±0.27 mV, p=409), ST area (0.0841±0.1069, 0.0885±0.0981, 0.0871±0.1113 mV sec, p=0.792), T-amplitude (0.59±0.42, 0.59±0.40, 0.57±0.38 mV, p=0.071), and QT interval measurements (0.35±0.07 sec, 0.36±0.06 sec, 0.36±0.05 sec, p=0.256) of three observers were not statistically different. All observer pairs showed significant and substantial correlations in all four parameters with correlation coefficients ranging between 0.803-0.974 (p<0.001 was for all correlations between each paired observer). Conclusion: Digitization of paper electrocardiogram records enables integral (area) analysis in paper records and more detailed analysis for researchers with paper electrocardiogram archives or lack of signal recording opportunity. Our designated publicly available tool can be reliably used in this process. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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