Intravascular optical coherence tomography imaging at 3200 frames per second.
We demonstrate intravascular optical coherence tomography (OCT) imaging with frame rate up to 3.2 kHz (192,000 rpm scanning). This was achieved by using a custom-built catheter in which the circumferential scanning was actuated by a 1.0 mm diameter synchronous motor. The OCT system, with an imaging depth of 3.7 mm (in air), is based on a Fourier domain mode locked laser operating at an A-line rate of 1.6 MHz. The diameter of the catheter is 1.1 mm at the tip. Ex vivo images of human coronary artery (78.4 mm length) were acquired at a pullback speed of 100 mm/s. True 3D volumetric imaging of the entire artery, with dense and isotropic sampling in all dimensions, was performed in <1 second acquisition time.
Thorax Center, Erasmus University Medical Center, Rotterdam, The Netherlands. t.wang.1@erasmusmc.nl
Tianshi
T
Wang
Wolfgang
W
Wieser
Geert
G
Springeling
Robert
R
Beurskens
Charles T
CT
Lancee
Tom
T
Pfeiffer
Antonius F W
AF
van der Steen
Robert
R
Huber
Gijs
G
van Soest
D057785:Catheters; D003331:Coronary Vessels; D005583:Fourier Analysis; D006321:Heart / Q000502:physiology; D006801:Humans; D013997:Time Factors; D041623:Tomography, Optical Coherence / Q000295:instrumentation / Q000379:methods*