Abstract
We have developed an Internet-based tool for remote realtime auscultation. The device was based on a commercially available electronic stethoscope and a PC which digitized and transmitted the signals. A voice and video channel were also available. The remote auscultation tool was evaluated between two sites in Sweden separated by a distance of 500 km. A doctor at one of the sites performed cardiac and pulmonary auscultations on patients located at the other site. Four test patients were assisted by a nurse operating the electronic stethoscope. The auscultation sessions were performed with and without video support to assess the importance of visual contact between doctor and patient. Twenty sessions were conducted (excluding technical testing to solve problems with the equipment). Audio quality was sufficient, as judged subjectively by the doctors concerned. Video support improved the doctor s confidence that the stethoscope was being operated properly and greatly simplified the interaction. Moreover, it improved all participants subjective impression of the virtual meeting. Our work demonstrates the feasibility of performing remote auscultation sessions over the Internet.
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