DocumentCode :
140892
Title :
Assessment of vessel tortuosity in retinal images of preterm infants
Author :
Oloumi, Faraz ; Rangayyan, Rangaraj M. ; Ells, Anna L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
fYear :
2014
fDate :
26-30 Aug. 2014
Firstpage :
5410
Lastpage :
5413
Abstract :
Diagnosis of plus disease is crucial for timely treatment and management of retinopathy of prematurity. An indicator of the presence of plus disease is an increase in the tortuosity of blood vessels in the retina. In this work, we propose a new angle-variation-based measure for quantification of tortuosity in retinal fundus images of preterm infants. The methods include the use of Gabor filters to detect vessels as well as to obtain their orientation at each pixel. Morphological image processing methods are used to obtain a skeleton image of the vessels for measurement of tortuosity. Out of 11 vessel segments, marked by an expert ophthalmologist as showing high levels of tortuosity due to plus disease, all were correctly identified using the proposed methods.
Keywords :
Gabor filters; blood vessels; bone; diseases; eye; medical disorders; medical image processing; obstetrics; orthopaedics; vision; Gabor filters; angle-variation-based measurement; blood vessels; morphological image processing methods; patient treatment; plus disease diagnosis; prematurity retinopathy; preterm infants; retina; retinal fundus imaging; skeleton imaging; tortuosity quantification; vessel segments; vessel tortuosity assessment; Biomedical imaging; Diseases; Image segmentation; Length measurement; Retina; Retinopathy; Skeleton;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
ISSN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2014.6944849
Filename :
6944849
Link To Document :
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