Abstract
We demonstrate megahertz intravascular Doppler Optical Coherence Tomography (OCT). The OCT system relies on a 1.1 mm diameter motorized catheter and a 1.5 MHz Fourier Domain Mode Locked (FDML) laser. By resolving the phase shift between adjoint A-lines, the flow pattern image can be reconstructed. Imaging experiments were carried out in swine coronary artery in vitro at a speed of 600 frames/s. The MHz sweep rate not only allows us to investigate flow velocity of up to 37.5 cm/s without phase-unwrapping, but also enables dynamic flow imaging at high frame rate.
Original language | English |
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Title of host publication | Diagnostic and Therapeutic Applications of Light in Cardiology 2019 |
Editors | Kenton W. Gregory , Laura Marcu |
Number of pages | 5 |
Volume | 10855 |
Publisher | SPIE |
Publication date | 26.02.2019 |
Article number | 1085503 |
DOIs | |
Publication status | Published - 26.02.2019 |
Event | Diagnostic and Therapeutic Applications of Light in Cardiology 2019 - San Francisco, United States Duration: 02.02.2019 → 03.02.2019 Conference number: 148274 |
Research Areas and Centers
- Academic Focus: Biomedical Engineering