cerebrovascular "most commons"

what is the most common congenital anomaly of the Circle of Willis?

the absence of 1 or more communicating arteries

what is the most common indication for TCD?

suspected vasospasm/vasoconstriction caused by subarachnoid hemorrhage

time average max velocity (TAMV) is most commonly used for what type of exam?

TCD evaluation

stenosis in the intracranial arteries is most common in what vessels?

• MCA

• siphon

• terminal ICA

what is the most common collateral pathway for ICA disease?

anterior communicating artery (ACoA)

what is the most common location for intracranial aneurysm?

ACoA

what is the second most common location for intracranial aneurysm?

PCoA

intracranial AVMs are most common in what population?

men

what exam is considered the gold standard in arterial evaluation?

angiography

the CCA bifurcation is most commonly assessed for the presence of:

a bruit

the CCA bifurcation is the most common site of:

plaque formation in the cerebrovascular system

in most patients, the ECA is the:

anterior medial branch of the CCA

kinking of the ICA is the anatomic variant most commonly associated with:

symptomatic cerebral ischemia

what is the most common type of stroke?

ischemic stroke

strokes are more common in what populations?

• african americans

• men

what is the most common cause of a stroke?

plaque in the carotid bifurcation

which intracranial vessel is most commonly occluded with an acute stroke?

the MCA

bilateral homonymous hemanopia is most commonly associate with:

an occipital infarct

distal CCA IMT measurements are most commonly used to assess risk of:

cardiovascular events

what is the most common location of vertebral artery stenosis?

at the VA origin

what side does subclavian steal most commonly occur on?

left side

early systolic deceleration in the VA is most commonly caused by:

stenosis in the subclv A

dissection is more common in the:

extracranial ICA than the intracranial ICA

FMD usually occurs in the:

mid or distal segment of the ICA, while atherosclerosis most commonly affects the prox ICA

FMD is more common in what population?

young women

carotid body tumor formation is more common in what population?

females

what is the most common material used to make carotid stents?

Nitinol