Title :
Phase-resolved OCT/ODT for imaging tissue microcirculation
Author :
Chen, Z. ; Zhao, Y. ; Saxer, C. ; Xiang, S. ; De Boer, J.F. ; Nelson, J.S.
Author_Institution :
Beckman Laser Inst. & Med. Clinic, California Univ., Irvine, CA, USA
Abstract :
Summary form only given. Optical Doppler tomography (ODT), also termed Doppler optical coherence tomography (D-OCT), is a recently developed optical technique for imaging both tissue structure and flow velocity of moving particles in highly scattering media. However, previous ODT systems have been unable to achieve simultaneously both high imaging speed and high velocity sensitivity, which are essential for measuring flow in small blood vessels of human skin. In this report, we describe a novel phase-resolved OCT/ODT system that uses phase information derived from a Hilbert transformation to image blood now in human skin with fast-scanning speed and high velocity sensitivity.
Keywords :
Doppler measurement; Hilbert transforms; blood flow measurement; light coherence; light scattering; optical polarisers; optical tomography; photodiodes; skin; Doppler optical coherence tomography; Hilbert transformation; fast-scanning speed; flow velocity; high velocity sensitivity; highly scattering media; human skin; imaging speed; moving particles; optical Doppler tomography; optical technique; phase information; phase-resolved OCT/ODT; small blood vessel flow measurement; tissue microcirculation imaging; tissue structure; Blood vessels; Humans; Image motion analysis; Optical imaging; Optical scattering; Optical sensors; Particle scattering; Skin; Tomography; Velocity measurement;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907189
