Results 31 to 40 of about 446,709 (166)
Optical Coherence Tomography Angiography in Diabetes and Diabetic Retinopathy
Journal of Clinical Medicine, 2020 Diabetic retinopathy (DR) is a common complication of diabetes mellitus that disrupts the retinal microvasculature and is a leading cause of vision loss globally.
Jacqueline Chua +10 more
semanticscholar +1 more source
Skin research and technology, 2020 Non‐invasive diagnostic techniques in dermatology gained increasing popularity in the last decade. Reflectance confocal microscopy (RCM) and optical coherence tomography (OCT) are meanwhile established in research and clinical routine.
C. Ruini +3 more
semanticscholar +1 more source
Unified k-space theory of optical coherence tomography [PDF]
Advances in Optics and Photonics 13, 462-514 (2021), 2020 We present a general theory of optical coherence tomography (OCT), which synthesizes the fundamental concepts and implementations of OCT under a common 3D k-space framework. At the heart of this analysis is the Fourier diffraction theorem, which relates the coherent interaction between a sample and plane wave to the Ewald sphere in the 3D k-space ...
arxiv +1 more source
Phase-conjugate optical coherence tomography [PDF]
, 2006 Quantum optical coherence tomography (Q-OCT) offers a factor-of-two improvement in axial resolution and the advantage of even-order dispersion cancellation when it is compared to conventional OCT (C-OCT).
Baris I. Erkmen +2 more
core +3 more sources
A review of optical coherence tomography angiography (OCTA)
International Journal of Retina and Vitreous, 2015 Optical coherence tomography angiography (OCTA) is a new, non-invasive imaging technique that generates volumetric angiography images in a matter of seconds.
Talisa E de Carlo +3 more
semanticscholar +1 more source
Optical Coherence Tomography in Ophthalmology [PDF]
Journal of Ophthalmology, 2012 Optical coherence tomography (OCT) is an optical signal acquisition and processing method that captures micrometer-resolution three-dimensional images from within biological tissues. In recent years, OCT has become an important imaging technology used in diagnosing and following macular pathologies.
Stefan Mennel +3 more
openaire +4 more sources
Phase-dispersion optical tomography [PDF]
, 2001 We report on phase-dispersion optical tomography, a new imaging technique based on phase measurements using low-coherence interferometry. The technique simultaneously probes the target with fundamental and second-harmonic light and interferometrically ...
Dasari, Ramachandra R. +3 more
core +1 more source
Applications and future directions for optical coherence tomography in dermatology *
British Journal of Dermatology, 2020 Optical coherence tomography (OCT) is a noninvasive optical imaging method that can generate high‐resolution en face and cross‐sectional images of the skin in vivo to a maximum depth of 2 mm.
Bo Wan +7 more
semanticscholar +1 more source
Comparative analysis of full-field OCT and optical transmission tomography [PDF]
, 2023 This work compares two tomographic imaging technologies, time-domain full-field optical coherence tomography (FFOCT) working in reflection and optical transmission tomography (OTT), using a new optical setup that combines both. We show that, due to forward-scattering properties, the axial sectioning and contrast in OTT can be optimized by tuning ...
arxiv +1 more source
Optical coherency matrix tomography [PDF]
Scientific Reports, 2015 AbstractThe coherence of an optical beam having multiple degrees of freedom (DoFs) is described by a coherency matrix G spanning these DoFs. This optical coherency matrix has not been measured in its entirety to date—even in the simplest case of two binary DoFs where G is a 4 × 4 matrix.
Kagalwala, Kumel H. +3 more
openaire +3 more sources