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Updated: Apr 9, 2026

Blood Flow Imaging with Ultrafast Doppler
Published on: October 14, 2020
Holographic laser Doppler imaging of pulsatile blood flow
Jeffrey Bencteux1, Pierre Pagnoux1, Thomas Kostas1
1Centre National de la Recherche Scientifique (CNRS) UMR 7587, Institut Langevin, Fondation Pierre-Gilles de Gennes, Institut National de la Santé et de la Recherche Médicale (INSERM) U 979, UPMC, Université Paris 7, Ecole Supérieure de Physique et de Chim.
Abstract:
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.
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