Abstract
We realized an in vivo Fourier domain optical coherence tomography (FD OCT) setup that allows acquiring retinal depth scans at a rate of 25.000 per second. We demonstrate the possibility to measure Doppler flow depth profile in specific regions of interest. The method to extract the flow profiles is based on a local phase analysis of the backscattered signal and allows for bidirectional Doppler flow imaging. The velocity resolution in tissue is 200μm/s. We verified the method by measuring pump controlled in vitro flow through a glass capillary. The system allows for a real- time colour encoded Doppler tomogram rate of 2-4 per second. We recorded the pulsatility of different vessels close to optic nerve head.
| Original language | English |
|---|---|
| Pages (from-to) | 141-146 |
| Number of pages | 6 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5316 |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | Progress in Biomedical Optics and Imaging - Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII - San Jose, CA, United States Duration: Jan 26 2004 → Jan 28 2004 |
ASJC Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Keywords
- Fourier domain
- Laser Doppler Velocimetry
- Optical Coherence Tomography
- Partial Coherence Interferometry
- Spectral domain