scispace - formally typeset
Open AccessJournal ArticleDOI

Optical coherence tomography

TLDR
OCT as discussed by the authors uses low-coherence interferometry to produce a two-dimensional image of optical scattering from internal tissue microstructures in a way analogous to ultrasonic pulse-echo imaging.
Abstract
A technique called optical coherence tomography (OCT) has been developed for noninvasive cross-sectional imaging in biological systems. OCT uses low-coherence interferometry to produce a two-dimensional image of optical scattering from internal tissue microstructures in a way that is analogous to ultrasonic pulse-echo imaging. OCT has longitudinal and lateral spatial resolutions of a few micrometers and can detect reflected signals as small as approximately 10(-10) of the incident optical power. Tomographic imaging is demonstrated in vitro in the peripapillary area of the retina and in the coronary artery, two clinically relevant examples that are representative of transparent and turbid media, respectively.

read more

Content maybe subject to copyright    Report

Citations
More filters
Book ChapterDOI

Optical Coherence Tomography

TL;DR: Optical coherence tomography (OCT) has developed rapidly since its first realisation in medicine and is currently an emerging technology in the diagnosis of skin disease as mentioned in this paper, where OCT is an interferometric technique that detects reflected and backscattered light from tissue.
Journal ArticleDOI

Optical Coherence Tomography

TL;DR: The optical coherence tomograph is a new, noninvasive technical device that can obtain cross-sectional, high-resolution images-optical coherencetomographs (OCT)-of the retina that permits an accurate evaluation of various macular and chorioretinal pathologies and the early detection of glaucomatous damage.
Journal ArticleDOI

Nanoshell-mediated near-infrared thermal therapy of tumors under magnetic resonance guidance

TL;DR: In vivo studies under magnetic resonance guidance revealed that exposure to low doses of NIR light in solid tumors treated with metal nanoshells reached average maximum temperatures capable of inducing irreversible tissue damage, and found good correlation with histological findings.
Journal ArticleDOI

The golden age: gold nanoparticles for biomedicine

TL;DR: It is argued that gold nanotechnology-enabled biomedicine is not simply an act of 'gilding the (nanomedicinal) lily', but that a new 'Golden Age' of biomedical nanotechnology is truly upon us.
Journal ArticleDOI

The third dimension bridges the gap between cell culture and live tissue

TL;DR: It is believed that 3D cultures will have a strong impact on drug screening and will also decrease the use of laboratory animals, for example, in the context of toxicity assays.
References
More filters
Journal ArticleDOI

Intraocular Pressure and Glaucoma

TL;DR: The winners and nominees for this year's Pulitzer Prize for public service announcements are:.
Journal ArticleDOI

Quantitative Studies of Retinal Nerve Fiber Layer Defects

TL;DR: In 12 eyes with NFL lesions induced by orbital optic nerve trauma, clinical detection of NFL atrophy was possible after loss of 50% of the neural tissue in a given area.
Journal ArticleDOI

Time-resolved transillumination for medical diagnostics.

TL;DR: A time-gated technique to improve the possibility of localizing spatial differences in absorption when transilluminating a turbid, highly scattering medium, such as human tissue, is demonstrated.
Journal Article

NMR in cancer: XVI. FONAR image of the live human body.

TL;DR: The FONAR technique that achieved the first chemical image of the live human being is described and the imaging showed the heart and mediastinum in the midline between the left and right lungs with the heart encroaching on the left lung space as it does at this level.
Journal ArticleDOI

Micron-resolution ranging of cornea anterior chamber by optical reflectometry

TL;DR: Noncontact, high resolution measurements of anterior eye structures using optical coherence domain reflectometry are described, and sensitivities to reflected signals as small as 10−10 of the incident power are achieved by heterodyne detection.
Related Papers (5)