research-article

Evaluating the Impact of Pseudo-Colour and Coordinate System on the Detection of Medication-induced ECG Changes

Authors:

Jennifer Royle,

Caroline JayAuthors Info & Claims

CHI '19: Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems

Paper No.: 123, Pages 1 - 13

https://doi.org/10.1145/3290605.3300353

Published: 02 May 2019 Publication History

Abstract

The electrocardiogram (ECG), a graphical representation of the heart's electrical activity, is used for detecting cardiac pathologies. Certain medications can produce a complication known as 'long QT syndrome', shown on the ECG as an increased gap between two parts of the waveform. Self-monitoring for this could be lifesaving, as the syndrome can result in sudden death, but detecting it on the ECG is difficult. Here we evaluate whether using pseudo-colour to highlight wave length and changing the coordinate system can support lay people in identifying increases in the QT interval. The results show that introducing colour significantly improves accuracy, and that whilst it is easier to detect a difference without colour with Cartesian coordinates, the greatest accuracy is achieved when Polar coordinates are combined with colour. The results show that applying simple visualisation techniques has the potential to improve ECG interpretation accuracy, and support people in monitoring their own ECG.

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The supplementary materials contain the full size images (PNG type) of some of the ECGs used in the experiment showing examples of normal (QT=417), borderline(QT=445), prolonged (QT=485) and very prolonged (QT=579) levels across all visualisation techniques, along with other examples of the abnormal T-wave morphology that were shown in the paper.

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Hirsch LMüller FChiossi FBenga TButz A(2023)My Heart Will Go On: Implicitly Increasing Social Connectedness by Visualizing Asynchronous Players’ Heartbeats in VR GamesProceedings of the ACM on Human-Computer Interaction10.1145/36110577:CHI PLAY(976-1001)Online publication date: 4-Oct-2023
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Sqalli MAl-Thani DElshazly MAl-Hijji M(2022)A Blueprint for an AI & AR-Based Eye Tracking System to Train Cardiology Professionals Better Interpret ElectrocardiogramsPersuasive Technology10.1007/978-3-030-98438-0_17(221-229)Online publication date: 21-Mar-2022
https://doi.org/10.1007/978-3-030-98438-0_17
Sqalli MAl-Thani DElshazly MAl-Hijji MHoussaini Y(2021)The Journey Towards an Accurate Electrocardiogram Interpretation: An Eye-tracking Study Overview2021 8th International Conference on Behavioral and Social Computing (BESC)10.1109/BESC53957.2021.9635168(1-4)Online publication date: 29-Oct-2021
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Index Terms

Evaluating the Impact of Pseudo-Colour and Coordinate System on the Detection of Medication-induced ECG Changes
1. Human-centered computing
  1. Visualization
    1. Visualization techniques

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cover image ACM Conferences

CHI '19: Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems

May 2019

9077 pages

ISBN:9781450359702

DOI:10.1145/3290605

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Stephen Brewster
University of Glasgow, Scotland, UK
,
Geraldine Fitzpatrick
TU Wien, Austria
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Anna Cox
University College London, UK
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Vassilis Kostakos
University of Melbourne, Australia

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Cited By

Hirsch LMüller FChiossi FBenga TButz A(2023)My Heart Will Go On: Implicitly Increasing Social Connectedness by Visualizing Asynchronous Players’ Heartbeats in VR GamesProceedings of the ACM on Human-Computer Interaction10.1145/36110577:CHI PLAY(976-1001)Online publication date: 4-Oct-2023
https://dl.acm.org/doi/10.1145/3611057
Sqalli MAl-Thani DElshazly MAl-Hijji M(2022)A Blueprint for an AI & AR-Based Eye Tracking System to Train Cardiology Professionals Better Interpret ElectrocardiogramsPersuasive Technology10.1007/978-3-030-98438-0_17(221-229)Online publication date: 21-Mar-2022
https://doi.org/10.1007/978-3-030-98438-0_17
Sqalli MAl-Thani DElshazly MAl-Hijji MHoussaini Y(2021)The Journey Towards an Accurate Electrocardiogram Interpretation: An Eye-tracking Study Overview2021 8th International Conference on Behavioral and Social Computing (BESC)10.1109/BESC53957.2021.9635168(1-4)Online publication date: 29-Oct-2021
https://doi.org/10.1109/BESC53957.2021.9635168
Alahmadi ADavies AVigo MJay C(2020)Pseudo-colouring an ECG enables lay people to detect QT-interval prolongation regardless of heart ratePLOS ONE10.1371/journal.pone.023785415:8(e0237854)Online publication date: 27-Aug-2020
https://doi.org/10.1371/journal.pone.0237854

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