Výsledky vyhledávání - "ocis:(170.0170) Medical optics and biotechnology"

Longitudinal correlation of 3D OCT to detect early stage erosion in bovine enamel

Autor: Paul H. Anderson, Abdirahman Aden, Richard J.M. Lynch, Peter H. Tomlins, Gary R. Burnett

Publikováno v: Biomedical Optics Express

Erosive tissue-loss in dental enamel is of significant clinical concern because the net loss of enamel is irreversible, however, initial erosion is reversible. Micro-hardness testing is a standard method for measuring initial erosion, but its invasiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caafe8cb11289d421e886b334642cbc6
http://europepmc.org/articles/PMC5330568

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Non-invasive dual fluorescence in vivo imaging for detection of macrophage infiltration and matrix metalloproteinase (MMP) activity in inflammatory arthritic joints

Autor: Ae-Kyung Yi, Fazal Ur Rehman Bhatti, Karen A. Hasty, John M. Stuart, Tae Won Yoon, Hongsik Cho

Publikováno v: Biomedical Optics Express

Detection and intervention at an early stage is a critical factor to impede arthritis progress. Here we present a non-invasive method to detect inflammatory changes in joints of arthritic mice. Inflammation was monitored by dual fluorescence optical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::188d59fea5c85c851613a57e275cb3e5
http://europepmc.org/articles/PMC4871085

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Spectroscopic imaging with spectral domain visible light optical coherence microscopy in Alzheimer's disease brain samples

Autor: Lichtenegger, Antonia, Harper, Danielle J., Augustin, Marco, Eugui, Pablo, Muck, Martina, Gesperger, Johanna, Hitzenberger, Christoph K., Woehrer, Adelheid, Baumann, Bernhard

Publikováno v: Biomedical Optics Express

A visible light spectral domain optical coherence microscopy system was developed. A high axial resolution of 0.88 μm in tissue was achieved using a broad visible light spectrum (425 – 685 nm). Healthy human brain tissue was imaged to quantify the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::c9c718eb5d34ce4a731bd0b190960d22
https://pubmed.ncbi.nlm.nih.gov/28966843

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Single input state polarization sensitive swept source optical coherence tomography based on an all single mode fiber interferometer

Autor: Stefan Zotter, Richard Haindl, Bernhard Baumann, Michael Pircher, Christoph K. Hitzenberger, Wolfgang Trasischker, Teresa Torzicky

Publikováno v: Biomedical Optics Express

We present a newly developed single mode fiber based swept source polarization sensitive optical coherence tomography system using a single input state at 1040 nm. Two non-polarizing fiber based beam splitters are combined to form a Mach-Zehnder inte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22d55e3fcfc5aa359f1c8d2cc18074b6
http://europepmc.org/articles/PMC4133007

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Automated tissue characterization of in vivo atherosclerotic plaques by intravascular optical coherence tomography images

Autor: Peter Sinnaeve, Jan D'hooge, Walter Desmet, Tom Adriaenssens, Giovanni J. Ughi

Publikováno v: Biomedical Optics Express

Intravascular optical coherence tomography (IVOCT) is rapidly becoming the method of choice for the in vivo investigation of coronary artery disease. While IVOCT visualizes atherosclerotic plaques with a resolution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::245769feb39f9724363abc7c5299c78e
http://europepmc.org/articles/PMC3704084

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Quantification of PpIX concentration in basal cell carcinoma and squamous cell carcinoma models using spatial frequency domain imaging

Autor: Natalie Zeitouni, Barbara W. Henderson, Janet Morgan, Daniel J. Rohrbach, Ulas Sunar

Publikováno v: Biomedical Optics Express

5-aminolaevulinic acid photodynamic therapy (ALA-PDT) is an attractive treatment option for nonmelanoma skin tumors, especially for multiple lesions and large areas. The efficacy of ALA-PDT is highly dependent on the photosensitizer (PS) concentratio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87b17f9e682143eba0c0f1b7542b3dd4
http://europepmc.org/articles/PMC3617715

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Sensitive and specific discrimination of pathogenic and nonpathogenic Escherichia coli using Raman spectroscopy—a comparison of two multivariate analysis techniques

Autor: Ryan C. Woodman, Steven J. Rehse, Sunil Palchaudhuri, Khozima Hamasha, Russell A. Putnam, Qassem I. Mohaidat

Publikováno v: Biomedical Optics Express
Physics Publications

The determination of bacterial identity at the strain level is still a complex and time-consuming endeavor. In this study, visible wavelength spontaneous Raman spectroscopy has been used for the discrimination of four closely related Escherichia coli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7cb4ef83a461ea4d17af384660bd543
http://europepmc.org/articles/PMC3617710

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Remote z-scanning with a macroscopic voice coil motor for fast 3D multiphoton laser scanning microscopy

Autor: Andrew Prendergast, Claire Wyart, Peter Rupprecht, Rainer W. Friedrich

Publikováno v: Biomedical optics express
Biomedical optics express, Optical Society of America-OSA Publishing, 2016, 7 (5), pp.1656-1671. ⟨10.1364/BOE.7.001656⟩
Biomedical Optics Express
Biomedical optics express, 2016, 7 (5), pp.1656-1671. ⟨10.1364/BOE.7.001656⟩

International audience; There is a high demand for 3D multiphoton imaging in neuroscience and other fields but scanning in axial direction presents technical challenges. We developed a focusing technique based on a remote movable mirror that is conju

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2092b7e58de7b8b177c5a0526551c1f9
https://hal.sorbonne-universite.fr/hal-01327206

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Tissue diagnosis using power-sharing multifocal Raman micro-spectroscopy and auto-fluorescence imaging

Autor: Faris, Sinjab, Kenny, Kong, Graham, Gibson, Sandeep, Varma, Hywel, Williams, Miles, Padgett, Ioan, Notingher

Publikováno v: Biomedical Optics Express

We describe a multifocal Raman micro-spectroscopy detection method based on a digital micromirror device, which allows for simultaneous “power-sharing” acquisition of Raman spectra from ad hoc sampling points. As the locations of the points can b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::9c2ef79ca1cace4fda3111e3b5ea0b4e
https://pubmed.ncbi.nlm.nih.gov/27570692

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Development of perturbation Monte Carlo methods for polarized light transport in a discrete particle scattering model

Autor: Jerome Spanier, Vasan Venugopalan, Carole K. Hayakawa, Jennifer Nguyen, Judith R. Mourant

Publikováno v: Biomedical Optics Express
Nguyen, J; Hayakawa, CK; Mourant, JR; Venugopalan, V; & Spanier, J. (2016). Development of perturbation Monte Carlo methods for polarized light transport in a discrete particle scattering model.. Biomedical optics express, 7(5), 2051-2066. doi: 10.1364/BOE.7.002051. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/7xw0g846

We present a polarization-sensitive, transport-rigorous perturbation Monte Carlo (pMC) method to model the impact of optical property changes on reflectance measurements within a discrete particle scattering model. The model consists of three log-nor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cf25af3aca050d6d71016165062b7f4
https://pubmed.ncbi.nlm.nih.gov/27231642

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