Lateral resonant Doppler imaging for quantitative flow extraction in spectral domain optical coherence tomography
Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/Gutachten › Beitrag in Konferenzband › Beigetragen › Begutachtung
Beitragende
Abstract
In spectral domain Doppler OCT, any transverse motion component of the obliquely moving sample relative to the incident sample beam causes a damping of the correlation between subsequent backscattering signals or even the loss of it making a phase-resolved Doppler flow analysis difficult because of the strong mean error of the Doppler phase shift. To circumvent this effect, a new method for resonant Doppler flow imaging and quantification in spectral domain OCT is proposed where the scanner movement velocity is approximately matched to the transverse velocity component of the oblique sample motion similar to a tracking shot where the camera is moved with respect to the sample. As a result, the backscattering signals corresponding to the moving sample will be highly correlated whereas those of static sample structures and slowly moving scatterers will be less correlated and damped depending on the scanner velocity. Advantageously, for the exact flow velocity quantification the new Doppler relationship of phase shift and sample velocity has not to be applied and the linear relation of the classic Doppler model can still be used. In the present work, first results of the lateral resonant Doppler imaging are shown for an 1 percent Intralipid flow phantom study.
Details
Originalsprache | Englisch |
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Titel | Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV |
Publikationsstatus | Veröffentlicht - 2011 |
Peer-Review-Status | Ja |
Publikationsreihe
Reihe | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
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Band | 7889 |
ISSN | 1605-7422 |
Konferenz
Titel | Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV |
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Dauer | 24 - 26 Januar 2011 |
Stadt | San Francisco, CA |
Land | USA/Vereinigte Staaten |
Externe IDs
Scopus | 79953730996 |
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ORCID | /0000-0003-0554-2178/work/142249849 |
ORCID | /0000-0003-2292-5533/work/142256587 |
Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- advanced interferometry, flow measurement, non-invasive imaging technique, oblique sample motion, phase-resolved Doppler analysis, random scattering sample, spectral domain optical coherence tomography