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Updated: Aug 30, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
Published on: September 18, 2012
Imaging of non-parabolic velocity profiles in converging flow with optical coherence tomography
Sergey G Proskurin1, Irena A Sokolova, Ruikang K Wang
1Biophotonics Laboratory, Institute of BioScience and Technology, Cranfield University, Silsoe, Bedfordshire MK45 4DT, UK.
Abstract:
The optical coherence tomography method was explored for two-dimensional flow mapping of a highly scattering fluid in flow with complex geometry. Converging flow (capillary entry) with 4:1 constriction was used for demonstration of non-invasive and remote methods of mapping varying velocity profiles. Downstream of the geometry was scanned with approximately 10 x 10 x 10 microm3 spatial resolution and structural imaging of the lumen and images of one particular velocity were acquired. Stable concave, blunted and parabolic profiles are obtained at different distances of the inlet length. Application of the technique for the blood circulation is also discussed.
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