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A usability evaluation of a body surface potential map visualization system

Bond, Raymond R., Finlay, Dewar, Nugent, Chris D. and Moore, George (2011) A usability evaluation of a body surface potential map visualization system. In: International Conference on Computing in Cardiology, China. IEEE. 4 pp. [Conference contribution]

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URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6164584

Abstract

Although the Body Surface Potential Map (BSPM) is considered to be an improved technique for the detection of cardiac pathologies when compared to the 12-lead electrocardiogram (ECG), it has not been adopted for routine clinical practice. This is partly due to a lack of clinician-friendly tools for visualizing the large amount of data a BSPM contains. This work presents the details of a usability evaluation of a BSPM viewer. This evaluation was conducted at the 2010 Computing in Cardiology meeting. Seven delegates (7 males, age:39±11) were recruited to take part in the evaluation. The protocol required the participants to complete a pre-test questionnaire, attempt a series of tasks whilst `thinking-aloud' and at the end of the session, complete a post-test questionnaire. Based on 3.5 hours of video and audio recordings (circa), 41 use errors were discovered and given a severity rating (mean:2.24±1.09, 1=cosmetic, 4=critical). Using a five-star scale, participants rated the responsiveness of the viewer (mode: 4/5), its usefulness (mode:3/4), learnability (mode:3/4), and its `look and feel' (mode:5). In conclusion, a usability evaluation was carried out in a conference setting to assess and improve the interface of a BSPM visualization system.

Item Type:Conference contribution (Paper)
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Mathematics
Research Institutes and Groups:Computer Science Research Institute > Smart Environments
Computer Science Research Institute
ID Code:24558
Deposited By: Dr Raymond Bond
Deposited On:29 Jan 2013 16:06
Last Modified:29 Jan 2013 16:06

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