spectral domain optical coherence tomography sd oct

These patents were licensed by Zeiss and formed the basis of the first generations of OCT products until 2006. The first US patents on OCT by the MIT/Harvard group described both a time-domain OCT (TD-OCT) system and a Fourier-domain OCT (FD-OCT) system of the swept-source variety. The first demonstrations of in vivo OCT imaging quickly followed.

The article introduced the term “OCT” to credit its derivation from optical coherence-domain reflectometry, in which the axial resolution is based on temporal coherence. The first demonstration of OCT imaging (in vitro) was published by a team from MIT and Harvard Medical School in a 1991 article in the journal Science. Short-coherence-length light can be obtained using a superluminescent diode (SLD) with a broad spectral bandwidth or a broadly tunable laser with narrow linewidth. Optical coherence tomography ( OCT) is an imaging technique that uses interferometry with short- coherence-length light to obtain micrometer-level depth resolution and uses transverse scanning of the light beam to form two- and three-dimensional images from light reflected from within biological tissue or other scattering media. ( Learn how and when to remove this template message)Ī high-resolution spectral-domain OCT scan (3x3-mm) of a dry age-related macular degeneration eye showing geographic atrophy and drusen in macula on both cross-sectional and en face fly-through. ( April 2020) ( Learn how and when to remove this template message) Please help improve it to make it understandable to non-experts, without removing the technical details. This article may be too technical for most readers to understand.

Spectral domain optical coherence tomography sd oct