Experiences in digitizing and digitally measuring a paper-based ECG archive

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Holkeri , A , Eranti , A , Kenttä , T V , Noponen , K , Haukilahti , M A E , Seppänen , T , Junttila , M J , Kerola , T , Rissanen , H , Heliövaara , M , Knekt , P , Aro , A L & Huikuri , H V 2018 , ' Experiences in digitizing and digitally measuring a paper-based ECG archive ' , Journal of Electrocardiology , vol. 51 , no. 1 , pp. 74-81 . https://doi.org/10.1016/j.jelectrocard.2017.09.007

Title: Experiences in digitizing and digitally measuring a paper-based ECG archive
Author: Holkeri, Arttu; Eranti, Antti; Kenttä, Tuomas V.; Noponen, Kai; Haukilahti, M. Anette E.; Seppänen, Tapio; Junttila, M. Juhani; Kerola, Tuomas; Rissanen, Harri; Heliövaara, Markku; Knekt, Paul; Aro, Aapo L.; Huikuri, Heikki V.
Contributor organization: HYKS erva
Department of Medicine
Kardiologian yksikkö
HUS Heart and Lung Center
Date: 2018
Language: eng
Number of pages: 8
Belongs to series: Journal of Electrocardiology
ISSN: 0022-0736
DOI: https://doi.org/10.1016/j.jelectrocard.2017.09.007
URI: http://hdl.handle.net/10138/299383
Abstract: Background: No established method for digitizing and digital measuring of paper electrocardiograms (ECG) exists. We describe a paper ECG digitizing and digital measuring process, and report comparability to manual measurements. Methods: A paper ECG was recorded from 7203 health survey participants in 1978-1980. With specific software, the ECGs were digitized (ECG Trace Tool), and measured digitally (EASE). A sub-sample of 100 ECGs was selected for manual measurements. Results: The measurement methods showed good agreement. The mean global (EASE)-(manual) differences were 1.4 ms (95% CI 0.5-2.2) for PR interval, 1.0 ms (95% CI 1.5 [-0.5]) for QRS duration, and 11.6 ms (95% CI 10.5-12.7) for QT interval. The mean inter-method amplitude differences of RampV5, RampV6, SampV1, TampII and TampV5 ranged from 0.03 mV to 0.01 mV. Conclusions: The presented paper-to-digital conversion and digital measurement process is an accurate and reliable method, enabling efficient storing and analysis of paper ECGs. (C) 2017 Elsevier Inc. All rights reserved.
Subject: Electrocardiography
3121 General medicine, internal medicine and other clinical medicine
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: publishedVersion

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