Retinopathy and maculopathy grading scheme for the English National Screening Programme for Diabetic Retinopathy.

<p>Retinopathy and maculopathy grading scheme for the English National Screening Programme for Diabetic Retinopathy.</p

Workload reduction versus referable sensitivity for the four automated strategies.

<p>The arrows indicate the 95% confidence intervals on the measurements.</p

Receiver operator characteristic (ROC) plot for all the graders who took part in the external arbitration.

<p>The three levels of grader (primary, secondary and arbitration) are shown by ‘*’, ‘+’ and ‘o’ respectively. All the graders were compared against a consensus grading calculated from the results from all the arbitration level graders. Notice even amongst the arbitration level graders there is a range of operating points from high specificity and lower sensitivity to high sensitivity and lower specificity.</p

Performance of the four automated strategies for detecting different grades of disease, together with the associated workload reduction.

<p>Performance of the four automated strategies for detecting different grades of disease, together with the associated workload reduction.</p

Comparison of per patient sensitivities and workload reduction from this study and three Scottish studies using the same software.

<p>Note that study <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0027524#pone.0027524-Fleming1" target="_blank">[4]</a> is the only one that apparently missed proliferative disease. However, subsequent re-grading of the six supposed proliferative cases downgraded all cases to non-referable (the six images in question are available as supplementary material from the BJO website).</p