Retinal Thickness and Volume Estimates Given by Time Domain and Spectral Optical Coherence Tomography
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).
Observational Model: Case Control, Time Perspective: Prospective
Optical coherence tomography
Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Nordre Ringvej 57
Glostrup University Hospital, Copenhagen
Results (where available)
- 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.
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 using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.
Objectives: 1. To assess the tolerability of performing optical coherence tomography and/or optical spectroscopy in patients with acute oral mucositis. 2. To determine the...
Information will be collected prospectively in about 3,000 patients having Optical Coherence Tomography during cardiac catheterization. Subjects will be initially enrolled at sites outsid...
The purpose of this research is to evaluate optical coherence tomography (OCT) and FDA approved device used to image diseases of the eye. The ultra-high resolution OCT is a non-significan...
RATIONALE: New diagnostic procedures, such as optical coherence tomography, may be effective in finding tumor cells. PURPOSE: This clinical trial is studying optical coherence tomography...
Optical coherence tomography will be a feasible adjunct to flexible bronchoscopy, and provide images with good sensitivity and specificity to determine the presence of endobronchial malign...
PURPOSE: We examined the usefulness of 3-dimensional optical coherence tomography to enhance the diagnosis of urothelial carcinoma in situ. MATERIALS AND METHODS: By expressing SV40T antigen with urop...
Consensus standards for acquisition, measurement, and reporting of intravascular optical coherence tomography studies: a report from the international working group for intravascular optical coherence tomography standardization and validation.
The purpose of this document is to make the output of the International Working Group for Intravascular Optical Coherence Tomography (IWG-IVOCT) Standardization and Validation available to medical and...
We present a method for correcting coherence gate curvature caused by scanning-induced path length variations in spectral-domain high-NA optical coherence imaging systems. These variations cause curva...
Background: The aim of our study was to analyze spectral optical coherence tomography (SD-OCT) findings in a patient with clinical signs of sialidosis. Case Report: Fluorescein angiography and spect...