Results 51 to 60 of about 150,220 (302)

Analysis of the Significance of Keratotopography, Keratopachymetry and Optical Coherence Tomography of the Cornea in the Differential Diagnosis of Pellucid Marginal Corneal Degeneration and Keratoconus

open access: yesOftalʹmologiâ, 2022
Purpose. To analyze the significance of keratotopography, keratopachymetry and optical coherence tomography of the cornea in the differential diagnosis of pellucid marginal corneal degeneration with keratoconus.Patients and methods.
I. V. Vasilieva   +2 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Cumulative Sum Analysis for the Learning Curve of Optical Coherence Tomography Assisted Diagnosis of Basal Cell Carcinoma

open access: yesActa Dermato-Venereologica, 2020
The amount of training needed to correctly interpret optical coherence tomography scans of the skin is undefined. The aim of this study was to illustrate how cumulative sum charts can be used to determine how many optical coherence tomography scans ...
Eva van Loo   +6 more
doaj   +1 more source

Polarization Maintaining Fiber-Based Depth Encoded Cross-Polarized Optical Coherence Tomography

open access: yesIEEE Access, 2022
Cross-polarized optical coherence tomography offers improved imaging contrast of birefringent tissue, such as collagen organization, compared to conventional optical coherence tomography systems.
Maria N. Romodina   +2 more
doaj   +1 more source

Optical coherence tomography for the non-invasive investigation of the microstructure of ancient Egyptian faience [PDF]

open access: yes, 2012
Optical Coherence Tomography (OCT) is a non-invasive subsurface 3D imaging technique based on the Michelson interferometer. The non-invasive nature of OCT and its speed of acquisition makes it possible to image large volumes of intact objects to yield a ...
Saunders, D, Tite, M, Liang, H, Sax, M
core   +1 more source

Optical Coherence Tomography Angiography

open access: yesSoutheastern European Medical Journal, 2019
Optical coherence tomography angiography (OCT-A) is a new non-invasive technology for imaging of retinal and choroidal vasculature of the macular area with resolution comparable to histological sections.
Dunja Bajtl   +5 more
doaj   +1 more source

Combining Optical Coherence Tomography and Fundus Photography to Improve Glaucoma Screening

open access: yesDiagnostics, 2022
We aimed to evaluate the accuracy of glaucoma screening using fundus photography combined with optical coherence tomography and determine the agreement between ophthalmologists and ophthalmology residents.
Tomoyuki Watanabe   +8 more
doaj   +1 more source

Full-field optical coherence tomography [PDF]

open access: yes, 2005
To eliminate mechanical scanning in the probe head of an endoscopic OCT system, we propose the use of an imaging fibre bundle for probe beam delivery.
H. D. Ford   +3 more
core   +1 more source

Optical coherence tomography and Doppler optical coherence tomography in the gastrointestinal tract

open access: yesWorld Journal of Gastroenterology, 2011
Optical coherence tomography (OCT) is a noninvasive, high-resolution, high-potential imaging method that has recently been introduced into medical investigations. A growing number of studies have used this technique in the field of gastroenterology in order to assist classical analyses. Lately, 3D-imaging and Doppler capabilities have been developed in
Eugen, Osiac   +4 more
openaire   +2 more sources

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