Ryo Itabashi; Eisuke Furui; Ichiro Suzuki; Toshio Kikuchi; Ryushi Kondo; Yasushi Matsumoto; Satoru Fujiwara. Iatrogenic Extravasation and Extracranial ICA Dissection During Neurointervention Evaluated by Transoral Carotid Ultrasonography: Case Report. JVIN 2023, 10.