Cerebrovascular disease and clinical history Flashcards
Neurologic deficit with no lasting effects completely resolving within 24 hours is a
TIA
A TIA is usually embolic and most common from the
Heart
This last longer than a TIA but completely resolves within 72 hours
RIND
This is a permanent neurologic deficit
CVA
This is ischemia affecting posterior circulation
VBI
What is the most common reason for cerebrovascular insufficiency
Ischemia
Bleeding from hypertension, ruptured aneurysm, and trauma is called a
Hemorrhage
What is the most common arterial disease
Atherosclerosis
What is the most contributing factor to arterial disease
Smoking
Thickening and hardening of intima and medial layers describes
Atherosclerosis
Where is atherosclerosis most commonly found at
Bifurcations and proximal vessels
A thin hypoechoic layer describes what type of plaque
Fatty streak
Lipids with collagen and fibrous material describes what type of plaque
Fibrous plaque
What are 2 other names for fibrous plaque
1) smooth
2) homogeneous
Soft fibrous plaque will look like
a) hyperechoic
b) hypoechoic
b) hypoechoic
Hard/ dense fibrous plaque will be
echogenic
Fibrous plaque mixed with calcium and debris that is complex or heterogenous describes what type of plaque
Complicated lesion
This type of plaque is completely hyperechoic with posterior shadowing
Calcified
This type of plaque is seen as a oval sonolucent area within the plaque that no flow is seen inside and is considered to be an unstable lesion
Intraplaque hemorrage
This type of plaque has a crater like deterioration where flow is seen inside and is considered unstable and may embolize or rupture
Ulcerative
Where is the most common source for an embolism
Heart
Thrombosis may come from what 3 things
1) plaque
2) trauma
3) dissection
What type of plaque is cholesterol crystals from the carotid that travel to the retina of the eye
Hollenhorst plaque
An acute total occlusion is considered a
stroke
What is the most common cause of a pulsatile neck mass
Tortuous vessels
Where is a carotid body tumor found
Between ICA and ECA
What vessel feeds a carotid body tumor
ECA
A ________ is most commonly found by trauma
Dissection
What is an overgrowth of collagen in the medial layer called
Fibromuscular Dysplasia
What is usually in younger women and is found in the mid to distal ICA
Fibromuscular dysplasia