3D retinal vascular network from optical coherence tomography data

  • Authors:

  • Pedro Guimarães;Pedro Rodrigues;Pedro Serranho;Rui Bernardes

  • Affiliations:

  • IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal;AIBILI/CNTM, Association for Innovation and Biomedical Research on Light, and Image, Coimbra, Portugal;IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal, Mathematics Section, Department of Science and Technology, Open University, Lisbon, Portugal;IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal, AIBILI/CNTM, Association for Innovation and Biomedical Research on Light, and Image, Coimbra, Portugal

  • Venue:
  • ICIAR'12 Proceedings of the 9th international conference on Image Analysis and Recognition - Volume Part II
  • Year:
  • 2012

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Abstract

The retinal vascular network is directly observable by non-invasive techniques, and changes of its status have been associated to retinal and cardiac pathologies. In order to infer on these changes, studies have been performed using 2D fundus images. However, measurements such as vessel tortuosity or bifurcation angle suffer from missing depth information. In this work we aim to consider the retinal vascular network in 3D as imaged by optical coherence tomography (OCT). We take advantage of proprietary software developed by our research group able to segment the vascular network from OCT fundus reference images (personal communication). This approach allows for the comparison between vessel and non-vessel A-scans and thus to highlight differences such as the hyper-reflectivity and the shadows casted by vessels.