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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 5, Iss. 4 — Apr. 1, 2014
  • pp: 1173–1189

Comparison of adaptive optics scanning light ophthalmoscopic fluorescein angiography and offset pinhole imaging

Toco Y. P. Chui, Michael Dubow, Alexander Pinhas, Nishit Shah, Alexander Gan, Rishard Weitz, Yusufu N. Sulai, Alfredo Dubra, and Richard B. Rosen  »View Author Affiliations


Biomedical Optics Express, Vol. 5, Issue 4, pp. 1173-1189 (2014)
http://dx.doi.org/10.1364/BOE.5.001173


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Abstract

Recent advances to the adaptive optics scanning light ophthalmoscope (AOSLO) have enabled finer in vivo assessment of the human retinal microvasculature. AOSLO confocal reflectance imaging has been coupled with oral fluorescein angiography (FA), enabling simultaneous acquisition of structural and perfusion images. AOSLO offset pinhole (OP) imaging combined with motion contrast post-processing techniques, are able to create a similar set of structural and perfusion images without the use of exogenous contrast agent. In this study, we evaluate the similarities and differences of the structural and perfusion images obtained by either method, in healthy control subjects and in patients with retinal vasculopathy including hypertensive retinopathy, diabetic retinopathy, and retinal vein occlusion. Our results show that AOSLO OP motion contrast provides perfusion maps comparable to those obtained with AOSLO FA, while AOSLO OP reflectance images provide additional information such as vessel wall fine structure not as readily visible in AOSLO confocal reflectance images. AOSLO OP offers a non-invasive alternative to AOSLO FA without the need for any exogenous contrast agent.

© 2014 Optical Society of America

OCIS Codes
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(170.4470) Medical optics and biotechnology : Ophthalmology
(290.4210) Scattering : Multiple scattering
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Ophthalmology Applications

History
Original Manuscript: December 4, 2013
Revised Manuscript: February 18, 2014
Manuscript Accepted: February 18, 2014
Published: March 13, 2014

Citation
Toco Y. P. Chui, Michael Dubow, Alexander Pinhas, Nishit Shah, Alexander Gan, Rishard Weitz, Yusufu N. Sulai, Alfredo Dubra, and Richard B. Rosen, "Comparison of adaptive optics scanning light ophthalmoscopic fluorescein angiography and offset pinhole imaging," Biomed. Opt. Express 5, 1173-1189 (2014)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-5-4-1173


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