Simultaneous ICG- and fluorescein-angiography for fundus examination

Background: An indocyanine-green (ICG) angiography is rarely used as the on ly diagnostic procedure. Almost always it is per-formed additionally to a f luorescein angiography. The use of simultaneous ICG and fluorescein (SIF) a ngiography therefore makes sense. Several examples for the application of S IF-angiography are presented. Materials and Methods: SIF-angiography was performed using a 2-wavelength s canning laser ophthalmoscope (SLO). Images were digitally recorded in real time with a graphics workstation. The following cases will be presented: ch oroidal neovascularization in age-related macular degeneration, choroidal h emangioma, inflammatory fundus disease (APMPPE) and idiopathic polypoidal c horoidal vasculopathy. Results: ICG and fluorescein angiography can be simultaneously recorded wit h the 2-wavelength SLO. The quality of the combined pictures is comparable to single-channel recordings of separate ICC and fluorescein images. We sho w results of the above mentioned cases. Conclusions: SIF angiography is time efficient and allows precise compariso n and analysis of the transit of both dyes through retinal and choroidal ci rculation. The topographic relation pf pathologic findings in ICG angiogram s with the critical retinal vascular landmarks is facilitated.