Holographic laser Doppler imaging of pulsatile blood flow.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Journal of biomedical optics
دوره 20 6 شماره
صفحات -
تاریخ انتشار 2015