Distribution of crackles on the flow-volume plane in different pulmonary diseases.
A new method to represent and evaluate crackles on the flow-volume plane is described. Characteristic crackle patterns were found in patients with pneumonia, bronchiectasis, chronic obstructive pulmonary disease, heart failure and cryptogenic fibrosing alveolitis. In addition to visual assessment, simple statistical parameters were used to describe the observed pathological phenomena.
Vanderschoot
J
J
University of Leiden, Medical Informatics, The Netherlands.
Helistö
P
P
Lipponen
P
P
Piirilä
P
P
Sovijärvi
A R
AR
D000328:Adult; D000368:Aged; D001987:Bronchiectasis / Q000503:physiopathology; D005260:Female; D006333:Heart Failure / Q000503:physiopathology; D006801:Humans; D008171:Lung Diseases / Q000503:physiopathology*; D008173:Lung Diseases, Obstructive / Q000503:physiopathology; D008176:Lung Volume Measurements; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000503:physiopathology; D011658:Pulmonary Fibrosis / Q000503:physiopathology; D012123:Pulmonary Ventilation; D015203:Reproducibility of Results; D012135:Respiratory Sounds / Q000503:physiopathology*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D013018:Sound Spectrography / Q000295:instrumentation / Q000379:methods*