Frequency analysis of adventitious lung sounds.
Adventitious lung sounds from twenty patients with respiratory diseases have been recorded and analysed by analogue methods. The results obtained are compared with those from five normal subjects. The difference in the frequency components of lung sounds from patients with pulmonary obstruction in the airways and those from normal subjects are pointed out. This technique may well prove to be an objective method of diagnosis in pulmonary medicine.
D000328:Adult; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010781:Photography; D012135:Respiratory Sounds