Cerebral Ischemia and Infarction

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What is the primary role of neuroimaging in stroke?

To treat stroke

To exclude other conditions that can mimic stroke (correct)

To diagnose stroke

To monitor stroke progression

What is transient ischemic attack (TIA) also known as?

Transient stroke

Warning stroke

Temporary stroke

Mini stroke (correct)

What is the main difference between ischemic and hemorrhagic stroke?

Symptoms of the stroke

Cause of the stroke (correct)

Location of the stroke

Size of the lesion

What is an example of a fixed risk factor for stroke?

Age >80 years Signup and view all the answers

How does hypertension increase the risk of ischemic stroke?

By accelerating atherosclerosis of cerebral blood vessels Signup and view all the answers

What is the outcome of ischemic stroke?

Liquefactive necrosis of brain tissue Signup and view all the answers

What is the pathogenesis of ischemic stroke?

Thrombosis or embolism Signup and view all the answers

What is a modifiable risk factor for stroke?

Hyperlipidemia Signup and view all the answers

What percentage of the total body oxygen consumption is used by the brain?

20% Signup and view all the answers

What is the mechanism that helps maintain constant cerebral perfusion despite changes in blood pressure?

Autoregulation Signup and view all the answers

What is the term for a reduction of blood flow to a localized area of the brain?

Focal cerebral ischemia Signup and view all the answers

What type of infarct occurs in the most distal portions of arterial territories in the brain and spinal cord?

Border zone infarct Signup and view all the answers

What is the most common type of infarct?

Embolic infarct Signup and view all the answers

What determines the clinical deficit in cases of ischemic stroke?

Site and size of the infarct Signup and view all the answers

What is the effect of hypertension on cerebral blood vessels?

It leads to formation of minute aneurysms Signup and view all the answers

What is the gross appearance of intracerebral hemorrhage?

A cavity with brown rim Signup and view all the answers

What is the location of amyloid deposits in cerebral amyloid angiopathy (CAA)?

Cerebral cortex and meninges Signup and view all the answers

What is the characteristic of vascular malformations?

Tangled network of worm-like vascular channels Signup and view all the answers

What is the definition of stroke?

An acute onset neurological deficit due to a vascular disease Signup and view all the answers

Cerebral Ischemia and Infarction

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Questions and Answers

What is the primary role of neuroimaging in stroke?

What is transient ischemic attack (TIA) also known as?

What is the main difference between ischemic and hemorrhagic stroke?

What is an example of a fixed risk factor for stroke?