1.1 Scanning Principles Optical coherence tomography (OCT) is a medical diagnostic imaging technology that captures micron resolution three-dimensional images. It is based on the principle of optical reflectometry, which involves the measurement of light back-scattering through transparent or semi-transparent media such as biological tissues. It achieves this by measuring the intensity and the echo time delay of light that is scattered from the tissues of interest. Light from a broadband light source is broken into two arms, a reference arm and a sample arm that is reflected back from structures at various depths within the posterior pole of the eye. There are two main ways in which the backscattered light can be detected: ▶ Time domain (TD) detection ▶ Fourier domain (FD) detection – which is further broken down into: • Spectral domain (SD) • Swept source (SS) Time Domain OCT Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Epiretinal Membrane Myopic Choroidal Neovascular Membrane Birdshot Chorioretinopathy Choroidal Melanoma Stay updated, free articles. Join our Telegram channel Join Tags: Handbook of Retinal OCT Optical Coherence Tomography Jun 19, 2016 | Posted by admin in OPHTHALMOLOGY | Comments Off on Scanning Principles Full access? Get Clinical Tree
1.1 Scanning Principles Optical coherence tomography (OCT) is a medical diagnostic imaging technology that captures micron resolution three-dimensional images. It is based on the principle of optical reflectometry, which involves the measurement of light back-scattering through transparent or semi-transparent media such as biological tissues. It achieves this by measuring the intensity and the echo time delay of light that is scattered from the tissues of interest. Light from a broadband light source is broken into two arms, a reference arm and a sample arm that is reflected back from structures at various depths within the posterior pole of the eye. There are two main ways in which the backscattered light can be detected: ▶ Time domain (TD) detection ▶ Fourier domain (FD) detection – which is further broken down into: • Spectral domain (SD) • Swept source (SS) Time Domain OCT Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: Epiretinal Membrane Myopic Choroidal Neovascular Membrane Birdshot Chorioretinopathy Choroidal Melanoma Stay updated, free articles. Join our Telegram channel Join Tags: Handbook of Retinal OCT Optical Coherence Tomography Jun 19, 2016 | Posted by admin in OPHTHALMOLOGY | Comments Off on Scanning Principles Full access? Get Clinical Tree
