title: Scanning protocols dedicated to smart velocity ranging in spectral OCT.
abstract: 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.
authors.affiliation: Institute of Physics, Nicolaus Copernicus University, ul. Grudziadzka 5/7, PL-87-100 Torun, Poland, EU.
authors.forename: Ireneusz
authors.initials: I
authors.lastname: Grulkowski
authors.forename: Iwona
authors.initials: I
authors.lastname: Gorczynska
authors.forename: Maciej
authors.initials: M
authors.lastname: Szkulmowski
authors.forename: Daniel
authors.initials: D
authors.lastname: Szlag
authors.forename: Anna
authors.initials: A
authors.lastname: Szkulmowska
authors.forename: Rainer A
authors.initials: RA
authors.lastname: Leitgeb
authors.forename: Andrzej
authors.initials: A
authors.lastname: Kowalczyk
authors.forename: Maciej
authors.initials: M
authors.lastname: Wojtkowski
mesh_terms: D001783:Blood Flow Velocity / Q000502:physiology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D012161:Retinal Artery / Q000033:anatomy & histology / Q000502:physiology*; D012212:Rheology / Q000379:methods*; D041623:Tomography, Optical Coherence / Q000379:methods*