Near-infrared time-resolved spectroscopy and fast scanning spectrophotometry in ischemic human forearm

Marco Ferrari; Roberto Alberto De Blasi; Piero Bruscaglioni; Marco Barilli; Luca Carraresi; Massimo Gurioli; Enrico Quaglia; Giovanni Zaccanti

doi:10.1117/12.44198

1 May 1991 Near-infrared time-resolved spectroscopy and fast scanning spectrophotometry in ischemic human forearm

Marco Ferrari, Roberto Alberto De Blasi, Piero Bruscaglioni, Marco Barilli, Luca Carraresi, Massimo Gurioli, Enrico Quaglia, Giovanni Zaccanti

Author Affiliations +

Proceedings Volume 1431, Time-Resolved Spectroscopy and Imaging of Tissues; (1991) https://doi.org/10.1117/12.44198
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

Human forearm oxygenation and scattering changes during ischemia were investigated using picosecond near infrared laser spectroscopy. Path lengths were calculated for different geometries. At 760 nm, a plateau phaser was reached after 4 min occlusion. No changes were observed during the occlusion at 800 nm, the hemoglobin isosbetic wavelength. Time-resolved Monte Carlo simulations were performed also to mimic the propagation of a light pulse in a forearm phantom containing different quantity and size of polystyrene spheres as scattering media. The influence of both the scattering and absorption effects was studied.

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Marco Ferrari, Roberto Alberto De Blasi, Piero Bruscaglioni, Marco Barilli, Luca Carraresi, Massimo Gurioli, Enrico Quaglia, and Giovanni Zaccanti "Near-infrared time-resolved spectroscopy and fast scanning spectrophotometry in ischemic human forearm", Proc. SPIE 1431, Time-Resolved Spectroscopy and Imaging of Tissues, (1 May 1991); https://doi.org/10.1117/12.44198

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