Indocyanine Green Angiography: General Aspects and Interpretation
More than three decades ago, indocyanine green angiography (ICGA) was introduced into ophthalmology. The relatively poor fluorescence efficiency of the indocyanine green (ICG) molecule and its limited ability to produce high-resolution images on infrared film initially restricted its angiographic application; however, ICG has subsequently been found to have several advantages over sodium fluorescein, especially in imaging choroidal vasculature. The emergence of high-resolution infrared digital imaging systems, specifically designed for ICGA and a growing awareness of choroidal vascular lesions has led to a resurgence of interest in ICGA.1 The applications of ICGA continue to grow in number; the full extent of its capabilities is not yet known.
KeywordsRetinal Pigment Epithelium Fluorescein Angiography Indocyanine Green Polypoidal Choroidal Vasculopathy Indocyanine Green Angiography
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