2022 PET Pharmacokinetic Modelling Course May 26, 2022 - May 28, 2022 — Edinburgh
Brain and Brain PET 2022 May 29, 2022 - Jun 01, 2022 — Glasgow
2022 SINAPSE ASM Jun 13, 2022 - Jun 14, 2022 — Strathclyde University, Glasgow
2022 OHBM Annual Meeting Jun 19, 2022 - Jun 23, 2022 — Glasgow, SEC

eLearning

SINAPSE experts from around Scotland have developed ten online modules designed to explain medical imaging. They are freely available and are intended for non-specialists. **Unfortunately these do not currently work in browsers**


Edinburgh Imaging Academy at the University of Edinburgh offers the following online programmes through a virtual learning environment:

Neuroimaging for Research MSc/Dip/Cert

Imaging MSc/Dip/Cert

PET-MR Principles & Applications Cert

Applied Medical Image Analysis Cert

Online Short Courses

Retinal vessel classification: sorting arteries and veins

Author(s): D. Relan, T. MacGillivray, L. Ballerini, E. Trucco

Abstract:
For the discovery of biomarkers in the retinal vasculature it is essential to classify vessels into arteries and veins. We automatically classify retinal vessels as arteries or veins based on colour features using a Gaussian Mixture Model, an Expectation-Maximization (GMM-EM) unsupervised classifier, and a quadrant-pairwise approach. Classification is performed on illumination-corrected images. 406 vessels from 35 images were processed resulting in 92% correct classification (when unlabelled vessels are not taken into account) as compared to 87.6%, 90.08%, and 88.28% reported in [12] [14] and [15]. The classifier results were compared against two trained human graders to establish performance parameters to validate the success of classification method. The proposed system results in specificity of (0.8978, 0.9591) and precision (positive predicted value) of (0.9045, 0.9408) as compared to specificity of (0.8920, 0.7918) and precision of (0.8802, 0.8118) for (arteries, veins) respectively as reported in [13]. The classification accuracy was found to be 0.8719 and 0.8547 for veins and arteries, respectively.

Full version: Available here

Click the link to go to an external website with the full version of the paper


ISBN: 1557-170X (Print)1557-170X (Linking)
Publication Year: 2013
Periodical: Conf Proc IEEE Eng Med Biol Soc
Periodical Number:
Volume: 2013
Pages: 7396-9
Author Address: