May 2005
Volume 46, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2005
Intraoperative Video Fluorescein Angiography Using Optical Fiber–Free Intravtreal Surgery System for Retinal Blood Flow Analysis
Author Affiliations & Notes
  • K. Yata
    Department of Ophthalmology, Fujita Health University School of Medicine, Toyoake, Japan
  • N. Horio
    Department of Ophthalmology, Fujita Health University School of Medicine, Toyoake, Japan
  • A. Tanikawa
    Department of Ophthalmology, Fujita Health University School of Medicine, Toyoake, Japan
  • M. Horiguchi
    Department of Ophthalmology, Fujita Health University School of Medicine, Toyoake, Japan
  • Footnotes
    Commercial Relationships  K. Yata, None; N. Horio, None; A. Tanikawa, None; M. Horiguchi, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2005, Vol.46, 4047. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      K. Yata, N. Horio, A. Tanikawa, M. Horiguchi; Intraoperative Video Fluorescein Angiography Using Optical Fiber–Free Intravtreal Surgery System for Retinal Blood Flow Analysis . Invest. Ophthalmol. Vis. Sci. 2005;46(13):4047.

      Download citation file:


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

      ×
  • Supplements
Abstract

Abstract: : Purpose:To report a new method to perform intraoperative video fluorescein angiography (VFA) using an optical fiber–free intravitreal surgery system (OFFISS) and retinal blood flow analysis during surgery. Methods:Four eyes of 4 patients with macular edema secondary to branch retinal vein occlusion underwent vitrectomy and intraoperative VFA with a bolus of 0.8 ml fluorescein dye. The mean circulation time (MCT) and segmental blood flow (SBF) were calculated using dye dilution technique. Intraocular pressure was maintained at 15 mmHg. Results:The VFA was clearly recorded with stable excitation light and very little eye movement under retrobulbar anesthesia. The MCT of the affected vessels (6.11 ± 2.21 seconds) was significantly longer than that of the healthy vessels (1.70 ± 0.70 seconds) (P < 0.05). The SBF of the affected vessels (6.1 ± 1.2 pixel2/sec) was significantly lower than that of the healthy vessels (17.9 ± 7.9 pixel2/sec) (P < 0.05). Conclusions:The combination of VFA and OFFISS can facilitate intraoperative VFA, and may be useful for evaluating retinal blood flow during surgery.

Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • vitreoretinal surgery • vascular occlusion/vascular occlusive disease 
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×