DMS 250 Chapter 37 Extracranial Cerebrovascular Evaluation

sudden trouble seeing in one or both eyes is a classic warning sign of ____

stroke

slide 4

TIA

transient ischemic attack

slide 5

with a TIA, symptoms usually last ____

less than 24 hours

slide 5

CVA

cerebrovascular accident

slide 6

____ is a permanent ischemic neurologic deficit

CVA

slide 6

RIND

reversible ischemic neurologic deficit

slide 7

RIND resolves ____

between 24-72 hours

slide 7

F.A.S.T.E.R

• facial weakness

• arm weakness\

• speech

• time to act/ talking

• react/ call 911

slide 8

temporary blindness in one or both eyes

amurosis fugax

slide 9

amurosis fugax indicates disease on the ____ side

ipsilateral

slide 9

innominate artery divides into ____ and ____

carotid artery and right subclavian artery

slide 12

gives rise to the right vertebral artery

right subclavian artery

slide 12

most commonly occurring variant is LT CCA forming common origin with or originating directly from the ____

innominate artery

slide 13

most commonly visualized branch of ECA during carotid duplex imaging

superior thyroid artery

slide 21

two vertebral arteries are ____ in size about 75% of cases with ____ vetebral artery being the dominant artery

asymmetric; left

slide 28

____ tends to be larger than the ECA to account for the larger amount of blood volume it transports

ICA

slide 30

the ICA maintains ____ resistance arterial flow in the normal pt

low

slide 30

blood flow within the ECA undergoes ____ resistance

high

slide 31

a difference of >20 mm Hg pressure between arms suggests proximal stenosis/occlusion of ____ or ____ on side with lower pressure

subclavian or innominate artery

slide 32

____ tissue vibration produced by blood flow turbulence

bruit (noise)

slide 33

keep Doppler sample volume size ____

small

slide 34

use ____- degree angle (or less) to vessel wall

60

slide 35

make sure angle is ____ to vessel walls

parallel

slide 35

____ is common site for development of atherosclerotic disease

CCA BIF

slide 41

sample volume size should be ____ and placed ____

small; in center of artery

slide 43

CCA spectral waveform demonstrates resistive pattern that is ____ resistive ICA and ____ resistive ECA

low; high

slide 45

when calculating ICA to CCA peak systolic ratio, the Doppler spectral waveform obtained from ____ is used

straight portion of distal CCA

slide 47

ICA demonstrates blood flow velocity that is ____ resistive

low

slide 48

____ is a normal flow disturbance

boundary layer separation

slide 50

____ is detected as a transient reversal of blood floow along posterior wall of the bulb

boundary layer separation

slide 50

ECA normally demonstrates a ____ resistive pattern

high

slide 55

ECA is ____ diameter

smaller

slide 57

____ usually originates anterior and medial at carotid BIF, and has cervical branches

ECA

slide 57

____ is the ECA branch most visualized during carotid duplex imaging

superior thyroid artery

slide 57

normal vertebral arteries are ____

asymmetrical

slide 58

carotid body assists in ____. ____. and ____

regulating hr, bp, and respiration

slide 79

FMD

fibromuscular dysplasia

slide 82

____ is nonatherosclerotic disease that usually affects media of arterial wall in medium sized arteries

FMD

slide 82

FMD predominantly occurs in ____ arteries and in midsegment of ____

renal; ICA

slide 82

FMD has been described as having “____” appearance by arteriography

string of pearls

slide 82