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Opt Express. 2009 Dec 21;17(26):23736-54. doi: 10.1364/OE.17.023736.

Scanning protocols dedicated to smart velocity ranging in spectral OCT.

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Institute of Physics, Nicolaus Copernicus University, ul. Grudziadzka 5/7, PL-87-100 Torun, Poland, EU.


We introduce a new type of scanning protocols, called segmented protocols, which enable extracting multi-range flow velocity information from a single Spectral OCT data set. The protocols are evaluated using a well defined flow in a glass capillary. As an example of in vivo studies, we demonstrate two- and three-dimensional imaging of the retinal vascular system in the eyes of healthy volunteers. The flow velocity detection is performed using a method of Joint Spectral and Time domain OCT. Velocity ranging is demonstrated in imaging of retinal vasculature in the macular region and in the optic disk area characterized by different flow velocity values. Additionally, an enhanced visualization of retinal capillary network is presented in the close proximity to macula.

[Indexed for MEDLINE]

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