A computerised stethoscope would help detect heart defects that may not be picked up by an ordinary stethoscope. Researchers at the Sussex University's heart sound group, UK, have developed the low-cost diagnostic tool that listens to the heartbeats of a patient and then digitises the sound. The digital data is recorded on a computer disk so that it could be compared with others made at a later stage -- thus revealing whether the condition of the heart has changed. The collected data gives an idea of what to look for when faced with a possible heart defect.
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