background: the goal of this study was to determine the reliability of tcd in evaluation of vertebrobasilar arteries in comparison with brain mra in patients suffering from acute vertebrobasilar stroke. methods: samples were patients with definite clinical diagnosis of vertebrobasilar stroke. for all patients brain mri, mra and tcd were performed during the first 48 hours of admission. basilar ...

This study presents a preliminary trial for a new classification of cholesteatoma that allow comparison of cases and standardization of management. All previous attempts failed to gain acceptance because of the lack of clinical relevance. Objective: Trial of a new simple practical system to stage cholesteatoma based only on the extent of the lesion, utilizing microscopic and endoscopic examinat...

We introduce grading into games of status. Each player chooses effort, producing a stochastic output or score. Utilities depend on the ranking of all the scores. By clustering scores into grades, the ranking is coarsened, and the incentives to work are changed. We apply games of status to grading exams. Our main conclusion is that if students care primarily about their status (relative rank) in...

A cooperative effort between Virginia Tech, the USDA Forest Service, and the industry has led to the development of a new scanning technology to automatically detect lumber grading features that affect the value of the end product. This effort has resulted in several commercial scanning systems now available through Group Seven Systems and Nova Technologies. These systems include a color sortin...

Histological grading of canine mammary carcinomas (CMCs) has been performed using an adaptation of the human Nottingham method. The histological grade could be a prognostic factor in CMC; however, no data are available concerning interobserver variability in grading. In this study we analyzed the interobserver reproducibility between three observers when assigning individual parameter scores an...

Cataracts, which result from lens opacification, are the leading cause of blindness worldwide. Current methods for determining the severity of cataracts are based on manual assessments that may be weakened by subjectivity. In this work, we propose a system to automatically grade the severity of nuclear cataracts from slit-lamp images. We introduce a new feature for cataract grading together wit...

PURPOSE A classical twin study was performed to establish the relative importance of genes and environment in cortical cataract. METHODS Five hundred six pairs of unselected female twin volunteers (226 monozygotic and 280 dizygotic) with a mean age of 62 years (range, 49-79 years) were examined. Cortical cataract was assessed using the slit-lamp-based Oxford Clinical Cataract Classification a...

Address correspondence to: Caleb Feliciano, MD, University of Puerto Rico, Medical Sciences Campus, PO Box 365067, San Juan, Puerto Rico 00936-5067. Tel: (787) 754-0101 xt. 4195 • Fax: (787) 294-3627 • Email: [email protected] Background: traditionally, decisions regarding treatment and outcomes for patients with cerebral arteriovenous malformations (aVM) have made use of the spetzlerMart...

Citation: Rodriguez JD, Lane KJ, Ousler GW III, Angjeli E, Smith LM, Abelson MB. Automated grading system for evaluation of superficial punctate keratitis associated with dry eye. Invest Ophthalmol Vis Sci. 2015;56:2340–2347. DOI:10.1167/ iovs.14-15318 PURPOSE. To develop an automated method of grading fluorescein staining that accurately reproduces the clinical grading system currently in use.