Spatial mapping of blood flow and oxygen consumption in the human calf muscle using near-infrared spectroscopy

Sergio Fantini; Matthew L. Hoimes; Claudia Casavola; Maria-Angela Franceschini

doi:10.1117/12.431507

4 May 2001 Spatial mapping of blood flow and oxygen consumption in the human calf muscle using near-infrared spectroscopy

Sergio Fantini, Matthew L. Hoimes, Claudia Casavola, Maria-Angela Franceschini

Author Affiliations +

Proceedings Volume 4241, Saratov Fall Meeting 2000: Optical Technologies in Biophysics and Medicine II; (2001) https://doi.org/10.1117/12.431507
Event: Saratov Fall Meeting 2000, 2001, Saratov, Russian Federation

Abstract

We have designed a new optical probe to perform spatially resolved measurements of blood flow and oxygen consumption over an area of about 4 x 4 cm² of the lateral gastrocnemius muscle (calf muscle) of human subjects. The blood flow and the oxygen consumption were measured non- invasively with frequency-domain, near-infrared spectroscopy from the maximum rate of increase of the oxy- and deoxy- hemoglobin concentrations in the muscle during venous occlusion. In a preliminary test on one subject, involving measurements at rest and after exercise, we have found that the spatial variability of the measured blood flow and oxygen consumption is significantly greater than the variability of repeated measurements at a given tissue location. We have also observed a strong spatial dependence of the exercise-induced increase in blood flow and oxygen consumption.

Citation Download Citation

Sergio Fantini, Matthew L. Hoimes, Claudia Casavola, and Maria-Angela Franceschini "Spatial mapping of blood flow and oxygen consumption in the human calf muscle using near-infrared spectroscopy", Proc. SPIE 4241, Saratov Fall Meeting 2000: Optical Technologies in Biophysics and Medicine II, (4 May 2001); https://doi.org/10.1117/12.431507

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