[Respiration-dependence of cutaneous laser Doppler flow motion].
The aim of this study was to show and to quantify the breath-dependency of cutaneous fluxmotion in the volar proximal forearm using a new computer-aided system. A meanflux-related index (MI) representing the intensity of the influence of respiration on fluxmotion was calculated. There was a good correlation between MI and the rate of respiration under spontaneous breathing: the lower the rate of respiration, the higher the value of MI. Prescribing a constant breathing rhythm amplifies this frequency-dependent effect. According to occurrence of low rates of respiration (< 12/min) also under physiological conditions the respiration should be simultaneously recorded while assessing fluxmotion.
Mück-Weymann
M E
ME
Dermatologische Klinik, Universität Erlangen-Nürnberg.
Albrecht
H P
HP
Hiller
D
D
Hornstein
O P
OP
Bauer
R D
RD
D000293:Adolescent; D000328:Adult; D001783:Blood Flow Velocity / Q000502:physiology; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D017078:Laser-Doppler Flowmetry / Q000295:instrumentation*; D008297:Male; D012016:Reference Values; D012119:Respiration / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012867:Skin / Q000098:blood supply*
Atemabhängigkeit kutaner Laser-Doppler-Fluxmotion.