TY - JOUR
T1 - In vitro estimation of tracheal mucous velocity
T2 - Comparison of a solid and a liquid marker
AU - Ahmed, T.
AU - Januszkiewicz, A. J.
AU - Brown, A.
AU - Chapman, G. A.
AU - Landa, J. F.
PY - 1980
Y1 - 1980
N2 - We compared the in vitro estimation of mucociliary transport using a solid marker (Teflon disc) to that of a liquid marker (methylene blue dye). In seven isolated canine tracheal preparations, motion of Teflon discs (2 mg/mm 2) and the advancing front of methylene blue dye droplets (0.04 mg/mm 2) were recorded simultaneously. In all comparisons, velocity of 46 pairs of Teflon discs and methylene blue dye droplets was within ± 10% of a line of identity. Mean tracheal mucous velocity by Teflons discs was 8.8 mm/min (SD 2.2), and with methylene blue dye 8.6 mm/min (SD 2.1). In all seven canine tracheas, comparison of mucous velocity was within ± 10% of a line of identity. These results indicate that the differences in such properties of a marker, i.e. liquid vs solid or their weights, per se do not affect the estimation of tracheal mucous velocity.
AB - We compared the in vitro estimation of mucociliary transport using a solid marker (Teflon disc) to that of a liquid marker (methylene blue dye). In seven isolated canine tracheal preparations, motion of Teflon discs (2 mg/mm 2) and the advancing front of methylene blue dye droplets (0.04 mg/mm 2) were recorded simultaneously. In all comparisons, velocity of 46 pairs of Teflon discs and methylene blue dye droplets was within ± 10% of a line of identity. Mean tracheal mucous velocity by Teflons discs was 8.8 mm/min (SD 2.2), and with methylene blue dye 8.6 mm/min (SD 2.1). In all seven canine tracheas, comparison of mucous velocity was within ± 10% of a line of identity. These results indicate that the differences in such properties of a marker, i.e. liquid vs solid or their weights, per se do not affect the estimation of tracheal mucous velocity.
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M3 - Article
C2 - 7407441
AN - SCOPUS:0019222950
VL - 16
SP - 533
EP - 538
JO - Clinical Respiratory Physiology
JF - Clinical Respiratory Physiology
SN - 0272-7587
IS - 4
ER -