Anterior Segment Fluorescein Videoangiography with a Scanning Angiographic Microscope
1990; Elsevier BV; Volume: 97; Issue: 6 Linguagem: Inglês
10.1016/s0161-6420(90)32515-0
ISSN1549-4713
AutoresL. David Ormerod, Enrique Fariza, George W. Hughes, Marshall G. Doane, Robert H. Webb,
Tópico(s)Acute Ischemic Stroke Management
ResumoThe scanning laser ophthalmoscope can be modified to operate as a scanning laser biomicroscope for use in anterior segment fluorescein angiography. The substantial depth of focus, large field of view, co-axial illumination, low light levels, real-time television operation, and videorecording with immediate recall provide advantages not available with conventional photographic methods. Video techniques give a resolution slightly inferior to photography, but this is unlikely to be significant in clinical practice. A technique of traversing the entire anterior episcleral vasculature has been developed to give a comprehensive and reproducible angiographic record. Previous fluorescein studies suggesting the primary importance of retrograde (centrifugal) flow in the perforating anterior ciliary arteries were not supported; methodologic explanations are advanced. Several principles are proposed to improve techniques of anterior segment angiography.
Referência(s)