Automated volumetric evaluation of stereoscopic disc photography
Author
Xu, J; Ishikawa, H; Wollstein, G; Bilonick, RA; Kagemann, L; Craig, JE; Mackey, DA; Hewitt, AW; Schuman, JSDate
2010-05-24Source Title
OPTICS EXPRESSPublisher
OPTICAL SOC AMERAffiliation
Ophthalmology Eye and Ear HospitalMetadata
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Journal ArticleCitations
Xu, J., Ishikawa, H., Wollstein, G., Bilonick, R. A., Kagemann, L., Craig, J. E., Mackey, D. A., Hewitt, A. W. & Schuman, J. S. (2010). Automated volumetric evaluation of stereoscopic disc photography. OPTICS EXPRESS, 18 (11), pp.11347-11359. https://doi.org/10.1364/OE.18.011347.Access Status
Access this item via the Open Access locationOpen Access at PMC
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2913866Abstract
PURPOSE: To develop a fully automated algorithm (AP) to perform a volumetric measure of the optic disc using conventional stereoscopic optic nerve head (ONH) photographs, and to compare algorithm-produced parameters with manual photogrammetry (MP), scanning laser ophthalmoscope (SLO) and optical coherence tomography (OCT) measurements. METHODS: One hundred twenty-two stereoscopic optic disc photographs (61 subjects) were analyzed. Disc area, rim area, cup area, cup/disc area ratio, vertical cup/disc ratio, rim volume and cup volume were automatically computed by the algorithm. Latent variable measurement error models were used to assess measurement reproducibility for the four techniques. RESULTS: AP had better reproducibility for disc area and cup volume and worse reproducibility for cup/disc area ratio and vertical cup/disc ratio, when the measurements were compared to the MP, SLO and OCT methods. CONCLUSION: AP provides a useful technique for an objective quantitative assessment of 3D ONH structures.
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