Automatic Anterior Chamber Angle Assessment for HD-OCT Images
- 30 August 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering
- Vol. 58 (11), 3242-3249
- https://doi.org/10.1109/tbme.2011.2166397
Abstract
Angle-closure glaucoma is a major blinding eye disease and could be detected by measuring the anterior chamber angle in the human eyes. High-definition OCT (Cirrus HD-OCT) is an emerging noninvasive, high-speed, and high-resolution imaging modality for the anterior segment of the eye. Here, we propose a novel algorithm which automatically detects a new landmark, Schwalbe's line, and measures the anterior chamber angle in the HD-OCT images. The distortion caused by refraction is corrected by dewarping the HD-OCT images, and three biometric measurements are defined to quantitatively assess the anterior chamber angle. The proposed algorithm was tested on 40 HD-OCT images of the eye and provided accurate measurements in about 1 second.Keywords
This publication has 12 references indexed in Scilit:
- Novel anterior-chamber angle measurements by high-definition optical coherence tomography using the Schwalbe line as the landmarkBritish Journal of Ophthalmology, 2010
- High-Definition Optical Coherence Tomography Imaging of the Iridocorneal Angle of the EyeAmerican Journal of Ophthalmology, 2009
- Quantitative analysis of anterior segment optical coherence tomography images: the Zhongshan Angle Assessment ProgramBritish Journal of Ophthalmology, 2008
- Anterior Chamber Angle Assessment TechniquesSurvey of Ophthalmology, 2008
- Detection of Primary Angle Closure Using Anterior Segment Optical Coherence Tomography in Asian EyesOphthalmology, 2007
- Correction of geometric and refractive image distortions in optical coherence tomography applying Fermat’s principleOptics Express, 2002
- Ultrasound biomicroscopy dark room provocative testing: a quantitative method for estimating anterior chamber angle width.Japanese Journal of Ophthalmology, 1999
- Subsurface Ultrasound Microscopic Imaging of the Intact EyeOphthalmology, 1990
- Efficient component labeling of images of arbitrary dimension represented by linear bintreesIeee Transactions On Pattern Analysis and Machine Intelligence, 1988
- Historical notes on gonioscopySurvey of Ophthalmology, 1975