Annotation
Telemedicine in paediatric cardiology
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Introduction |
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Telemedicine can broadly be defined as the application of modern telecommunication systems for clinical purposes. The essential feature is that there is remote consultation: the doctor and patient are in different places often separated by large distances. Such remote consultation usually requires the transfer of images from the referral centre to a centre of expertise.
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The technology |
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The explosion in the number of telemedicine projects is largely
due to major advances in telecommunications technology, which have made
it possible to transfer large amounts of data quickly. One of the most
significant developments is the introduction of integrated services
digital network (ISDN) lines to the telephone network of most western
countries. These lines have the capacity to allow rapid transfer of the
large amount of information necessary to transmit moving images such as
ultrasound pictures. Before transmission the image is converted to a
digital signal by a "codec", which is usually a desktop
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