Subjectivity in the diagnosis of plus disease in retinopathy of prematurity has prompted the creation of computer programs to objectively measure vascular characteristics. ROPtool is a semiautomated computer program that analyzes retinal vascular dilation and tortuosity. To explore its ability to trace images taken with a FDA-approved, portable, handheld noncontact digital fundus camera (Pictor), we compared ROPtool analysis of Pictor still images acquired by nonophthalmologists to video indirect ophthalmoscopy (VIO) still images acquired by ophthalmologists. ROPtool could trace more Pictor versus VIO images. In addition, receiver operating characteristic curves showed that accuracy for diagnosing pre-plus or plus disease was higher using Pictor versus VIO images.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5573606PMC
http://dx.doi.org/10.1016/j.jaapos.2017.04.006DOI Listing

Publication Analysis

Top Keywords

pictor versus
12
vio images
12
pre-plus disease
8
video indirect
8
indirect ophthalmoscopy
8
images acquired
8
versus vio
8
images
6
pictor
5
computer-assisted quantification
4

Similar Publications

Subjectivity in the diagnosis of plus disease in retinopathy of prematurity has prompted the creation of computer programs to objectively measure vascular characteristics. ROPtool is a semiautomated computer program that analyzes retinal vascular dilation and tortuosity. To explore its ability to trace images taken with a FDA-approved, portable, handheld noncontact digital fundus camera (Pictor), we compared ROPtool analysis of Pictor still images acquired by nonophthalmologists to video indirect ophthalmoscopy (VIO) still images acquired by ophthalmologists.

View Article and Find Full Text PDF

We investigated how the design of instructions can affect performance in preparing emergency stair travel devices for the evacuation of disable individuals. We had three hypotheses: 1) Design of instructions would account for a significant portion of explained performance variance, 2) Improvements in design of instructions would reduce time on task across device type and age group, and 3) There would be a performance decrement for older adults compared to younger adults based on the slowing of older adult information processing abilities. Results showed that design of instructions does indeed account for a large portion of explained variance in the operation of emergency stair travel devices, and that improvements in design of instructions can reduce time on task across device type and age group.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!