Master thesis presentation by Sigrun Hrafnsdottir

Karta Otillgänglig

Date(s) - 12/10/2017

Landahlsrummet (room 7430)


On Thursday, October 12 Sigrun Hrafnsdottir, MPBME, will be presenting her master thesis with the title “ViPHS mobile – a mobile video tool to support remote diagnosis in acute stroke”. The presentation will start at 10.00

When? 10:00 on 12 October, 2017
Where? Landahlsrummet (room 7430), Hörsalsvägen 11, 7th floor, Chalmers

Examiner: Bengt Arne Sjöqvist
Supervisors: Stefan Candefjord, Chalmers, and Hanna Maurin Söderholm, Högskolan i Borås

Stroke is considered a very time sensitive medical emergency that, each year, causes millions of deaths worldwide. In Sweden only, approximately 25 000 cases each year, out of which around 20% dies and 30% suffers lifelong disability. Society’s cost for stroke in Sweden is estimated to 19 BSEK a year – the most costly disease. Initiating treatment of stroke early is crucial in decreasing the mortality rate and improving patient overall outcome after treatment. Incorporating assistance from neurological experts in the prehospital setting can help to improve accuracy in decisions and therefore decrease the time from onset of symptoms to beginning of optimal treatment. Telemedicine systems, using real-time video, have been proposed to be a helpful tool in evaluating the severity of stroke as well as making more accurate decisions as to where the patient should be transported. As part of the PrehospIT stroke project lead by Prehospital ICT Arena (PICTA) at Lindholmen Science Park, a “best of breed” video support solution has been proposed including an ambulance as well as a mobile implementation. This master’s thesis focuses on the mobile implementation.

Through an iterative user centered design process, a mobile telemedicine video tool was designed for paramedics to use in potential stroke patients’ location, e.g. an apartment, before being moved to the ambulance. Two views of the patient are required for the neurologist to assess the patient when using the National Institutes of Health Stroke Scale (NIHSS) as assessment tool for determining the patients neurological status. In the first design iteration, two prototypes were tested and evaluated in a workshop. The data from the workshop was analyzed and the design solutions were revised for the making of a high fidelity prototype. This high fidelity prototype was tested and evaluated in a simulation environment. Results indicate this system to be beneficial for paramedics to use for support whenever there is a potential stroke. It seemed to work well overall, although more iterations are needed for a final solution. Recommendations for an effective system are presented based on results from the workshop and simulations.


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