June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Correlations Between the Volumes of Fibrovascular Retinal Pigment Epithelial Detachments and the Areas of Type 1 Choroidal Neovascularization in Age-related Macular Degeneration using OCT imaging
Author Affiliations & Notes
  • Elie Motulsky
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • Gregory Stein
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • Qinqin Zhang
    Department of Bioengineering, University of Washington , Seattle, Washington, United States
  • Chieh-Li Chen
    Department of Bioengineering, University of Washington , Seattle, Washington, United States
  • Fang Zheng
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • Guangui Liu
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • Joao Rafael Dias
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • William J Feuer
    Biostatistics, Univ of Miami-Bascom Palmer, Miami, Florida, United States
  • Ruikang K Wang
    Department of Bioengineering, University of Washington , Seattle, Washington, United States
  • Giovanni Gregori
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • Philip J Rosenfeld
    Bascom Palmer Eye Institute, Univ of Miami Miller Sch of Med , Miami, Florida, United States
  • Footnotes
    Commercial Relationships   Elie Motulsky, None; Gregory Stein, None; Qinqin Zhang, None; Chieh-Li Chen, None; Fang Zheng, None; Guangui Liu, None; Joao Dias, None; William Feuer, None; Ruikang Wang, Zeiss (F), Zeiss (C), Zeiss (R), Zeiss (P); Giovanni Gregori, Zeiss (F), Zeiss (P); Philip Rosenfeld, Zeiss (C)
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 369. doi:
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      Elie Motulsky, Gregory Stein, Qinqin Zhang, Chieh-Li Chen, Fang Zheng, Guangui Liu, Joao Rafael Dias, William J Feuer, Ruikang K Wang, Giovanni Gregori, Philip J Rosenfeld; Correlations Between the Volumes of Fibrovascular Retinal Pigment Epithelial Detachments and the Areas of Type 1 Choroidal Neovascularization in Age-related Macular Degeneration using OCT imaging. Invest. Ophthalmol. Vis. Sci. 2017;58(8):369.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : Spectral domain optical coherence tomography (SD-OCT) imaging has been shown to reproducibly measure the volumes of retinal pigment epithelial detachments (PEDs). Swept source OCT angiography (SS-OCTA) is being used to directly visualize choroidal neovascularization (CNV). An automated algorithm for measuring these areas of CNV has been developed and validated against hand-drawn area measurements (submitted for publication). The purpose of this study is to determine if the volumetric measurements of PEDs obtained using SD-OCT imaging can serve as a surrogate measurement for the areas of type 1 CNV measured using SS-OCTA imaging.

Methods : SS-OCTA imaging was performed as part of a prospective ongoing trial that was approved by the institutional review board of the University of Miami. Consents were obtained on all patients enrolled in the study. Eligible eyes contained type 1 CNV associated with minimally serous (< 50%) fibrovascular PEDS secondary to neovascular age-related macular degeneration (nAMD) in which at least two qualifying visits were available for analysis. Qualifying visits were defined by the acquisition of images using both the SD-OCT (Cirrus, Carl Zeiss Meditec, Dublin, CA) used to obtain PED volumes and a prototype SS-OCTA instruments (PlexElite 9000, Carl Zeiss Meditec, Dublin, CA) used to obtain the areas of the neovascular lesions.

Results : Three eyes of 3 patients met the eligibility criteria. All the eyes were undergoing treatment with inhibitors of vascular endothelial growth factor. A total of 23 visits were analyzed. A significant statistical correlation was found between PED volumes (mm3) and CNV areas (mm2) (p<0.001, ANCOVA).

Conclusions : In eyes with minimally serous PEDS, the volume of the PED correlated with the actual area of the CNV, which was measured using SS-OCTA. This observation would confirm our previous finding that described how changes in the volume of a PED in eyes undergoing anti-VEGF therapy could serve as a surrogate for changes in the actual size of the type 1 CNV associated with a vascularized PED.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

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