Development of graphic user interface for monitoring electrocardiographic signals in real time

Bojana Lango (2011) Development of graphic user interface for monitoring electrocardiographic signals in real time. EngD thesis.

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Abstract

The topic of this thesis is development of a graphical user interface for real-time monitoring of electrocardiographic signals. Our main goal was to design, implement and evaluate the graphical user interface. We developed a graphical user interface which allows us to browse, add, edit and delete patients in the patient's database. It also allows us to assign the measurement devices to the patients. It supports real-time displaying of electrocardiographic curves and alarm notifications in case of patient's critical states. For best visibility we used bright vivid colors and flashing background. Past measurements can be viewed and printed. Past alarms are stored and accessible for examination. Development took place in several iterations of the spiral user interface design model. In our work we followed basic principles and guidelines for user interface design, especially 10 Nielsen's design principles. Subset of functionalities for each iteration has been validated against usability heuristics. The developed graphical user interface was submitted to user testing in a real clinical environment in Dr. Franc Derganec general hospital in Nova Gorica. We updated the graphical user interface in collaboration with the medical staff. The graphical user interface was developed in Qt 3.x programming environment. It runs on several platforms and operating systems and was developed and tested in KDE graphical environment of LINUX OS.

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