Fig. 5
a Color-coded duplex ultrasonography of the common carotid artery. b Blood flow measurement in the carotid artery. The perivascular ultrasonic volume flow-sensor is placed around the carotid artery. c Blood flow at the time point of euthanasia in the common carotid artery after patch angioplasty, graft interposition and straight shunt between the common carotid artery and the external jugular vein. Dotted line represents physiologic blood flow as described in literature