Manual measurement of retinal bifurcation features

Al-Diri, Bashir, Hunter, Andrew, Steel, D. and Habib, M. (2010) Manual measurement of retinal bifurcation features. In: 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 31 August - 4 September 2010, Buenos Aires Sheraton Hotel, Buenos Aires, Argentina.

Full content URL:

Manual_Measurement_of_Retinal_Bifurcation_Features_EMBC10.pdf - Whole Document

Item Type:Conference or Workshop contribution (Paper)
Item Status:Live Archive


This paper introduces a new computerized tool for
accurate manual measurement of features of retinal bifurcation
geometry, designed for use in investigating correlations between measurement features and clinical conditions. The tool uses user-placed rectangles to measure the vessel width, and lines placed along vessel center lines to measure the angles. An
analysis is presented of measurements taken from 435 bifurcations.
These are compared with theoretical predictions based on
optimality principles presented in the literature. The new tool shows better agreement with the theoretical predictions than a simpler manual method published in the literature, but there remains a significant discrepancy between current theory and measured geometry.

Keywords:retinal bifurcation, blood vessel width, blood vessel local direction
Subjects:G Mathematical and Computer Sciences > G400 Computer Science
Divisions:College of Science > School of Computer Science
ID Code:2788
Deposited On:08 Jul 2010 14:53

Repository Staff Only: item control page