Fig. 4From: A case of scalp avulsion with prolonged ischemic time: indocyanine green angiography can aid in predicting replant survivalThe intraoperative and postoperative indocyanine green angiography (ICGA) mapping results. a Intraoperative ICGA mapping with SPY-Q analysis of perfusion in the replanted scalp. Asterisk represents the left temporal area that is automatically selected as a reference with a 100% perfusion value. Areas with 25% perfusion relative to the maximal perfusion reference were traced with blue lines. Areas confined by the blue lines represent well-perfused tissue with more than 25% of the reference area perfusion. b The color reversal version of ICGA image when the necrotic area became mature. Please note the hypoperfused frontoparietal area represented by the color whiteBack to article page