Laser Doppler measurement of cutaneous blood flow.

摘要: This work describes an instrument for the noninvasive measurement of cutaneous blood flow velocity. The system utilizes Doppler shift laser light backscattered from moving red cells in microcirculation, being obtained by optical heterodyning technique. Comparison is made between this technique and 133 xenon clearance measuring forearms normal volunteers. Variations were inducing different degrees solar erythema with ultraviolet sunlamp. A Y on X linear regression yielded a coefficient=0.89 (p n = 16) two methods. method appears to represent practical clinical evaluation any skin surface.