TY - JOUR
T1 - Megahertz intravascular Doppler optical coherence tomography enables simultaneous morphological and flow pattern imaging
AU - Wang, Tianshi
AU - Pfeiffer, Tom
AU - Daemen, Joost
AU - Mastik, Frits
AU - Wieser, Wolfgang
AU - Van Der Steen, A. F.W.
AU - Huber, Robert
AU - Van Soest, Gijs
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85066797077&partnerID=8YFLogxK
U2 - 10.1117/12.2506151
DO - 10.1117/12.2506151
M3 - Conference article
AN - SCOPUS:85066797077
SN - 1605-7422
VL - 10855
JO - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
JF - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
M1 - 1085503
T2 - Diagnostic and Therapeutic Applications of Light in Cardiology 2019
Y2 - 2 February 2019 through 3 February 2019
ER -