Booklet Atlas ICG US

Indocyanine Green Angiography Phases

Indocyanine Green Angiography

Timing

Phase

Description

ICG

First 60 seconds post injection.

Early

First appearance of dye in choroidal arteries; reti nal arteries and veins are dark.

Dye filling in choroidal veins and retinal vessels.

Early Mid

1 – 3 minutes

ICG

ICG

Late Mid

3 – 15 minutes

Choroidal vessels fading and retinal vessels still visible.

ICG

ICG

Late

15 – 45 Minutes

Hypocyanescent choroidal vessels and gradual fading of diffuse hypercyanescence.

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icg Diagnostic Atlas: A Retinal Reference Guide