fluoresceiinangiograafia
Fluorescein angiography is a diagnostic imaging procedure used primarily in ophthalmology to visualize the circulation of the retina and choroid. The technique involves intravenous injection of sodium fluorescein, a fluorescent dye that absorbs blue light and emits green light. As the dye circulates through the ocular vasculature, a series of photographs are taken with a special camera that blocks visible light. These images capture the dynamic passage of the dye, allowing detailed assessment of retinal blood flow, leakage, and the integrity of the blood‑retina barrier.
The test is commonly performed to evaluate conditions such as diabetic retinopathy, retinal vein occlusion, vasculitis,
Standard protocol entails a baseline image acquisition followed by sequential imaging at intervals ranging from seconds
In addition to morphological assessment, fluorescein angiography provides quantitative data on vascular leakage and perfusion deficits.