Figure 3.

Dynamic susceptibility MRI (DSC-MRI) in the normal canine brain. (A) DSC-MRI T2*W image at the level of the middle cerebral artery. Note the hypointensity of the cortical arteries (black arrow head) and middle cerebral artery (black arrow) during the arterial first pass of the gadolinium contrast bolus. (B,C) Cerebral blood volume (B) and cerebral blood flow (C) maps at the level of the middle cerebral artery. A blue-red scale is used on these maps, where red is high perfusion and blue is low perfusion. Note the red middle cerebral arteries and red–green cortical arteries (white arrow and arrow head) and the blue–green cerebral parenchyma (white asterisks).