University of Wisconsin–Madison

Tag: Key Posters

Ultra Wide Field Autofluorescence Imaging in Age Related Macular Degeneration Optos Peripheral Retina (OPERA) Age Related Eye Disease Study 2 (AREDS2) Ancillary Study (2014)

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Amitha Domalpally, Ronald Danis, Emily Chew, Srinivas Sadda, Traci Clemons, Thomas R Friberg, and the AREDS2 Research Group Abstract Purpose: To characterize abnormalities in the peripheral retina using ultrawidefield (UWF) autofluorescence (AF) images in eyes with age related macular degeneration (AMD) Methods: UWF images (200 degrees) centered on the posterior pole as well as steered …

Evaluation of Lens Opacities Using Fundus Reflex Photographs in the Age-Related Eye Disease Study 2 (AREDS2) (2013)

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Erika Treichel, Amitha Domalpally, Ronald Danis, Susan Reed, Ashwini Narkar, Traci Clemons, Emily Chew, and the AREDS2 Research Group Abstracts Purpose: To describe the methodology for evaluation of cortical and posterior subcapsular cataracts using digital fundus reflex photographs and the baseline lens data in AREDS2. The goal of AREDS2 is to study the effects of …

A computer-aided manual segmentation method for Spectral Domain OCT images yields increased inter-grader reproducibility (2013)

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Yijun Huang, Ronald P Danis, Jeong W. Pak, Shiyu Luo, James White, Xian Zhang, Ashwini Narkar, Amitha Domalpally Abstract Purpose: To develop a computer-aided manual segmentation method (EdgeSelect) for SD-OCT images, and compare its segmented results with those using a traditional manual segmentation (Manual) method. Methods: 3D Spectralis SD-OCT images (Heidelberg Inc., Germany) covering the …

Index of Non Circularity as a Predictor for Progression in Eyes with Geographic Atrophy (GA) (2013)

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Ronald P. Danis, Amitha Domalpally, Ellie Corkery, Ruth Shaw, Ashwini Narkar, Jim White Abstract Purpose: Given that baseline area and configuration of GA are associated with its progression rate, we hypothesized that a non circular configuration has a higher growth rate. Index of non circularity was developed on color photographs and was a strong predictor …

Morphological characteristics associated with drusen progression on Spectral Domain OCT (SD-OCT) (2013)

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Jeong W. Pak, Amitha Domalpally, Dawn Myers, Xiufen Yang, Ashwini Narkar, Yijun Huang, and Ronald P. Danis Abstract Purpose: To characterize drusen morphology and retinal layer abnormalities by simple, ordinal description and to associate these features with drusen progression over one year on SD-OCT scans. Methods: Twenty two pairs of SD-OCT macular volume scans at …

Index of Non-Circularity of Areas of Geographic Atrophy (GA) is Related to Progression Rate (2012)

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Ronald P. Danis, Amitha Domalpally, Larry D. Hubbard, Ashwini Narkar, James White, Emily Chew, Traci Clemons Abstract Purpose: We evaluated a parameter based upon an indirect measure of the extent to which the shape of an area of GA in an eye departs from that of a circle as a risk factor for rate of …

Features Associated with Geographic Atrophy from Autofluorescence Images (2012)

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Amitha Domalpally, Ronald P Danis, Ashwini Narkar, Barbara A. Blodi, Emily Chew, Traci Clemons Abstract Purpose: To evaluate the features associated with progression of Geographic Atrophy (GA) from Autofluorescence (AF) images. Methods: AF images (from scanning laser ophthalmoscopy) images are captured at annual visits in the Age Related Eye Disease Study 2 (AREDS2) ancillary study. …

Standardizing Retinal Thickness Measurements Across Spectral Domain Optical Coherence Tomography (SDOCT) Machines – 5 Point Measurement Method (2011)

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Dawn Myers, Amitha Domalpally, Jill C. Kubiak, Qian Peng, Ronald P. Danis Abstract Purpose: The outer boundary line (BL) location differs among SDOCT vendors making it difficult to compare retinal thickness data in clinical trials. No automated software is commercially available that can segment a common BL from all SDOCT types. Manual segmentation of BLs …

Retinal Vascular Caliber Associations with Diabetic Retinopathy in the DCCT/EDIC Primary Prevention Cohort (2011)

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Larry D. Hubbard, Qian Peng, Wanjie Sun, Sapna Gangaputra, Patricia A. Cleary, Charles S. Chandler, Thomas W. Pauli, Ronald P. Danis, and the DCCT/EDIC Study Group Abstract Purpose: To explore associations of retinal arteriolar and venular caliber with diabetic retinopathy (DR) in the Diabetes Control and Complications Trial (DCCT)/Epidemiology of Diabetes Interventions and Complications Study …

The Reproducibility and Sensitivity of Monochrome Images for the Evaluation of Diabetic Macular Edema in the DCCT/EDIC Study (2011)

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James L. Reimers, Sapna Gangaputra, Barbara Esser, Trina M. Harding, Qian Peng, Ronald P. Danis, Larry D. Hubbard, and the DCCT/EDIC Study Group Abstract Purpose: To evaluate diabetic macular edema (DME) levels from green channel (GrCh) fundus images (simulating red free) as compared to full color (Red/Green/Blue, RGB) images. Methods: From the Diabetes Control and …