Holographic laser Doppler imaging of pulsatile blood flow

Pierre Bencteux (1) , Pierre Pagnoux (1) , Thomas Kostas (1) , Sam Bayat (2) , Michael Atlan (1)

1 IL - Institut Langevin - Ondes et Images (UMR7587)
2 UPJV - Université de Picardie Jules Verne

We report on wide-field imaging of pulsatile motion induced by blood flow using heterodyne holographic interferometry on the thumb of a healthy volunteer, in real-time. Optical Doppler images were measured with green laser light by a frequency-shifted Mach-Zehnder interferometer in off-axis configuration. The recorded optical signal was linked to local instantaneous out-of-plane motion of the skin at velocities of a few hundreds of microns per second, and compared to blood pulse monitored by plethysmoraphy during an occlusion-reperfusion experiment.

Mots clés: Plethysmography; Laser doppler flowmetry; Holographic Interferometry; Heterodyne Detection

Domaines: Imagerie

Pierre Bencteux, Pierre Pagnoux, Thomas Kostas, Sam Bayat, Michael Atlan. Holographic laser Doppler imaging of pulsatile blood flow. Journal of Biomedical Optics, 2015, 20 (6), pp.066006. ⟨10.1117/1.JBO.20.6.066006⟩. ⟨hal-01386369⟩