12 February 2009 Three-dimensional acousto-optic mapping using planar scanning with ultrasound bursts
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Abstract
We have investigated the application of AO sensing for quantitative three-dimensional mapping of tissue-mimicking phantoms. An Intralipid phantom, which contains a turbid absorber, confined in a silicone tube, was used. Multiply scattered pulsed laser light was modulated by ultrasonic bursts focused in a predefined volume in the medium. By varying the delay time between ultrasound burst initiation and light pulse firing we could perform a scan in the ultrasound-propagation plane. By moving the ultrasound transducer, we could build up a volumetric map of modulation depth values. We have experimentally determined the acousto-optical modulation depth as a function of the absorption coefficient in phantom voxels of a few millimeters in size.
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A. Bratchenia, A. Bratchenia, R. Molenaar, R. Molenaar, R. P. H. Kooyman, R. P. H. Kooyman, "Three-dimensional acousto-optic mapping using planar scanning with ultrasound bursts", Proc. SPIE 7177, Photons Plus Ultrasound: Imaging and Sensing 2009, 71771H (12 February 2009); doi: 10.1117/12.808546; https://doi.org/10.1117/12.808546
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