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The surgical procedure used in the carotid imaging method. a First, the incisions are made in the skin, which is folded back or removed, creating a surgical window. b Lymph nodes, fat and other tissues are blunt dissected with forceps to expose the carotid arteries. c Black polyvinyl cloth that is optically opaque is placed behind the two carotid arteries. The surgical area is irrigated with PBS and covered with polyethylene film.
