Retinal Thickness and Volume Estimates Given by Time Domain and Spectral Optical Coherence Tomography
Summary
The purpose of the present study is to determine if the retinal thickness estimates of the Stratus OCT, the 3D OCT-1000, and the CirrusHD OCT are comparable in diabetic and in healthy individuals (OCT=Optical Coherence Tomography).
Study Design
Observational Model: Case Control, Time Perspective: Prospective
Conditions
Healthy
Intervention
Optical coherence tomography
Location
Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Nordre Ringvej 57
Glostrup
Copenhagen
Denmark
DK-2600
Status
Recruiting
Source
Glostrup University Hospital, Copenhagen
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00873106
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Tomography, Optical Coherence
An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes.
Tomography, Spiral Computed
Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures.
Tomography, X-ray Computed
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Tomography, Optical
Projection of near-IR light (INFRARED RAYS), in the 700-1000 nm region, across an object in parallel beams to an array of sensitive photodetectors. This is repeated at various angles and a mathematical reconstruction provides three dimensional MEDICAL IMAGING of tissues. Based on the relative transparency of tissues to this spectra, it has been used to monitor local oxygenation, brain and joints.
Tomography, Emission-computed
Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.
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PubMed Articles
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