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Sound transmission between 50 and 600 Hz in excised pig lungs filled with air and helium.

Abstract:

This study measured transit time (TT) and attenuation of sound transmitted through six pairs of excised pig lungs. Single-frequency sounds (50-600 Hz) were applied to the tracheal lumen, and the transmitted signals were monitored on the tracheal and lung surface using microphones. The effect of varying intrapulmonary pressure (Pip) between 5 and 25 cmH(2)O on TT and sound attenuation was studied using both air and helium (He) to inflate the lungs. From 50 to approximately 200 Hz, TT decreased...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MSD, Clinical Neuroscience
Journal:
Journal of applied physiology (Bethesda, Md. : 1985)
Volume:
89
Issue:
6
Pages:
2472-2482
Publication date:
2000-12-05
EISSN:
1522-1601
ISSN:
8750-7587
URN:
uuid:bbc510f7-7e1a-4afa-8e8d-a31c4adf3775
Source identifiers:
242165
Local pid:
pubs:242165

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