An AV fistula usually contains a high resistant signal during spectral doppler imaging. 

Click the area of the left MCA. 

Which of the following is not a common site for cerebral aneurysms to form?

What are the nonmodifiable risk factors associated with a stroke?

The _________ is the vessel utilized in transcranial Doppler when observing for emboli. 

The abdominal aorta terminates into the _________________ bifurcation. 

Which of the following is not a sonographic finding of an AV fistula?

The typical diameter for the anastomosis of an inflow artery and an outflow vein is __________ mm. 

Survival of the fittest is the best phrase that describes natural selection.

Determining survival is not enough because