Indocyanine Green (ICG) is a tricarbocyanine dye that is commonly used for hepatic, cardiovascular, plastic surgery and ophthalmology applications. It is usually injected intravenously at a dose comprised between 0.1 and 0.5 mg/kg. After administration, ICG binds to plasmatic proteins, lipoproteins and lipids, and is thereafter rapidly and completely cleared from blood by the liver. ICG is excited and emits fluorescence in the near-infrared (around 800 nm).