Results 41 to 50 of about 556,610 (356)
Resolution-enhanced OCT and expanded framework of information capacity and resolution in coherent imaging [PDF]
Sci Rep 11, 20541 (2021), 2021 Spatial resolution in optical microscopy has traditionally been treated as a fixed parameter of the optical system. Here, we present an approach to enhance transverse resolution in beam-scanned optical coherence tomography (OCT) beyond its aberration-free resolution limit, without any modification to the optical system.
arxiv +1 more source
Optical coherence tomography in pediatric patients: a clinical review
Therapeutic Advances in Ophthalmology, 2020 Optical coherence tomography has improved the ophthalmic clinical examination due to its ability to more accurately characterize pathology of the eye. Optical coherence tomography is now an integral imaging modality for many adult diseases of the retina ...
Bradley S. Gundlach, Irena Tsui
doaj +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
The role of optical coherence tomography guidance in scaffold versus stent optimization
The Egyptian Heart Journal, 2020 Background Optical coherence tomography showed a great ability to identify adverse features during percutaneous coronary intervention with drug-eluting stents and resulted in better clinical outcomes.
Arif A. Al Nooryani +4 more
doaj +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-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
Journal of Clinical Medicine, 2020 Remarkable improvements in optical coherence tomography (OCT) technology have resulted in highly sophisticated, noninvasive machines allowing detailed and advanced morphological evaluation of all retinal and choroidal layers. Postproduction semiautomated
Claudio Iovino +12 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
Characterization and modeling of the human left atrium using optical coherence tomography [PDF]
, 2019 With current needs to better understand the interaction between atrial tissue microstructure and atrial fibrillation dynamics, micrometer scale imaging with optical coherence tomography has significant potential to provide further insight on arrhythmia ...
Lye, Theresa Huang
core +2 more sources
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