Stethoscope software analyzes lung sounds

Hiroshima University and Fukushima Medical University researchers have created software and an electronic stethoscope to classify lung sounds into five common diagnostic categories.

Currently,¬†doctors¬†listening to heart and lung sounds on a stethoscope need to overcome background noise and recognize multiple irregularities. The system will be able to “hear” what a doctor might miss, and automatically identify multiple lung problems.

Recorded lung sounds of 878 patients were classified by respiratory physicians. The diagnoses were turned into templates, to create a mathematical formula that evaluates the length, frequency, and intensity of lung sounds. Software analyzed sound patterns during patient exams enable respiratory diagnoses.

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