scholarly journals Analysis of attenuation coefficient estimation in Fourier-domain OCT of semi-infinite media

2020 ◽  
Vol 11 (11) ◽  
pp. 6093
Author(s):  
Babak Ghafaryasl ◽  
Koenraad A. Vermeer ◽  
Jeroen Kalkman ◽  
Tom Callewaert ◽  
Johannes F. de Boer ◽  
...  
Keyword(s):  
Attenuation Coefficient ◽  
Fourier Domain ◽  
Coefficient Estimation ◽  
Fourier Domain Oct ◽  
Infinite Media

scholarly journals Attenuation coefficient estimation in Fourier-domain OCT of multi-layered phantoms

2021 ◽  
Author(s):  
Babak Ghafaryasl ◽  
Koenraad Vermeer ◽  
Jeroen Kalkman ◽  
Tom Callewaert ◽  
Johannes de Boer ◽  
...  
Keyword(s):  
Attenuation Coefficient ◽  
Fourier Domain ◽  
Coefficient Estimation ◽  
Fourier Domain Oct

High-speed frequency-swept light source at 1550-nm for Fourier domain OCT with A-scanning rate at 20kHz

2006 ◽  
Author(s):  
R. K. Wang ◽  
S. Cheung ◽  
P. H. Tomlins ◽  
C. Chong ◽  
A. Morosawa ◽  
...  
Keyword(s):  
Light Source ◽  
High Speed ◽  
Fourier Domain ◽  
Scanning Rate ◽  
Fourier Domain Oct

scholarly journals Ultrahigh speed Spectral / Fourier domain OCT ophthalmic imaging at 70,000 to 312,500 axial scans per second

2008 ◽  
Vol 16 (19) ◽  
pp. 15149 ◽  
Author(s):  
Benjamin Potsaid ◽  
Iwona Gorczynska ◽  
Vivek J. Srinivasan ◽  
Yueli Chen ◽  
James Jiang ◽  
...  
Keyword(s):  
Fourier Domain ◽  
Ophthalmic Imaging ◽  
Fourier Domain Oct

Differentiation between normal and tumor mammary glands with depth-resolved attenuation coefficient from optical coherence tomography

2021 ◽  
Author(s):  
Marino de Jesus Maciel ◽  
Hugo M Pereira ◽  
Sara Pimenta ◽  
Alice Miranda ◽  
Eduardo Jorge Nunes-Pereira ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Attenuation Coefficient ◽  
Light Attenuation ◽  
Biological Tissues ◽  
Mammary Glands ◽  
Optical Coherence ◽  
Cross Sectional ◽  
Subjective Analysis ◽  
Coefficient Estimation ◽  
Cross Sectional Imaging

Abstract Optical coherence tomography (OCT) is a well-established imaging technology for high-resolution, cross-sectional imaging of biological tissues. Imaging processing and light attenuation coefficient estimation allows to further improve the OCT diagnostic capability. In this paper we use a commercial OCT system, Telesto II-1325LR from Thorlabs, and demonstrate its ability to differentiate normal and tumor mammary mouse glands with the OCT attenuation coefficient. Using several OCT images of normal and tumor mammary mouse glands (n=26), a statistical analysis was performed. The attenuation coefficient was calculated in depth, considering a slope of 0.5 mm. The normal glands present a median attenuation coefficient of 0.403 mm-1, comparatively to 0.561 mm-1 obtained for tumor mammary glands. This translates in an attenuation coefficient approximately 39 % higher for tumor mammary glands when compared to normal mammary glands. The OCT attenuation coefficient estimation eliminates the subjective analysis provided by direct visualization of the OCT images.

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