High-speed, high-resolution Fourier-domain optical coherence tomography system for retinal imaging in the 1060 nm wavelength region.
Opt Lett
; 33(21): 2479-81, 2008 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-18978893
ABSTRACT
A high-speed (47,000 A-scans/s), ultrahigh axial resolution Fourier domain optical coherence tomography (OCT) system for retinal imaging at approximately 1060 nm, based on a 1024 pixel linear array, 47 kHz readout rate InGaAs camera is presented. When interfaced with a custom superluminescent diode (lambda(c) = 1020 nm, Deltalambda = 108 nm, Pout = 9 mW), the system provides 3.3 microm axial OCT resolution at the surface of biological tissue, approximately 4.5 microm in vivo in rat retina, approximately 5.7 microm in vivo in human retina, and 110 dB sensitivity for 870 microW incident power and 21 mus integration time. Retinal tomograms acquired in vivo from a human volunteer and a rat animal model show clear visualization of all intraretinal layer and increased penetration into the choroid.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Retina
/
Interpretação de Imagem Assistida por Computador
/
Aumento da Imagem
/
Espectroscopia de Infravermelho com Transformada de Fourier
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Tomografia de Coerência Óptica
/
Retinoscopia
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Canadá