Luminal and stromal areas of choroid determined by binarization method of optical coherence tomographic images

American Journal of Ophthalmology
Shozo SonodaTatsuro Ishibashi

Abstract

To determine the proportion of luminal and stromal areas of normal choroids in the optical coherence tomographic (OCT) images obtained by enhanced depth imaging (EDI)-OCT. A prospective, masked, observational cross-sectional study. setting: This study was performed at the Kagoshima University Hospital, Japan. One hundred and eighty right eyes of 180 healthy volunteers (106 women; mean age of 55.9 years) without ocular pathology. observational procedures: The EDI-OCT images of the posterior choroid 7500 μm from the optic disc in the horizontal plane were converted to binary images. The total cross-sectional choroidal area, luminal area, and stromal area of the choroid were measured. Correlations between clinical factors and each choroidal structure and ratio of luminal/stromal areas were determined. The correlations of each choroidal structure and the age, sex, axial length (AL), and refractive errors were calculated. The mean total cross-sectional choroidal area was 1.84 mm(2) (luminal area 1.21 mm(2) and stromal area 0.63 mm(2)). Multivariate analysis (standardized partial regression coefficient) showed that age (-0.723, P < .001) was significantly correlated with the reduced area of the choroid, and the correlation was greate...Continue Reading

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Citations

Feb 6, 2016·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Hiroki KawanoTaiji Sakamoto
Jul 19, 2015·American Journal of Ophthalmology·Kara-Anne Tan, Rupesh Agrawal
Jul 19, 2015·American Journal of Ophthalmology·Shozo SonodaTatsuro Ishibashi
Apr 17, 2016·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Taiji Sakamoto
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