Week 1 Brain Vasculature- Severson

Question 1

Which vessels are prone to thrombus?

Answer 1

PICA

AICA

Question 2

Which vessels are prone to embolus?

Answer 2

Superior cerebellar artery

Posterior cerebral artery

Question 3

Clot in anterior cerebral arteries?

Answer 3

Supplies motor and sensory cortex

-Contralateral paralysis of LOWER LIMBS

Question 4

Clot in middle cerebral arteries?

Answer 4

Supplies motor and sensory cortex

-Contralateral paralysis of UPPER LIMBS and FACE

Question 5

Clot in posterior cerebral arteries?

Answer 5

• Posterior occipital
• Stroke and vision loss
• Calcarine artery

Question 6

What does the basilar artery supply?

Answer 6

Pons, Medulla, lower midbrain

-can cause LOCKED IN SYNDROME

Question 7

Clot in PICA?

Answer 7

• Supplies Lateral medulla
• Lateral Medullary syndrome
• Neuro symptoms (numbness) in opposite body same side of face

Question 8

When would use a CT?

Answer 8

• ER, ICU (quick)

- Best screen for intracranial hemorrhage or complications related to mass effect

Question 9

When would use a MRI?

Answer 9

• Acute ischemia (stroke but it is time sensitive so usually use CT)
• Demyelinating disease
• Seizure foci or tumors

Question 10

What would you do to visualize the blood brain barrier?

Answer 10

Use contrast!

Question 11

Should you use contrast when getting an acute trauma CT?

Answer 11

NO!!! It may mask acute hemorrhage