USIDMS Extracranial Carotid
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is Eddy flow? | Color swirl of red and blue
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| What are the two types of stroke? Which is more common? | Ischemic- more common and hemorrhagic
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| What are the four stages of plaque formation? | ESIP
Endothelial injury, Sub-endothelial lipid deposit, Inflammation response (smooth muscle proliferation), and Plaque formation
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| What are the five terms that can describe plaque? | Extent of plaque, severity, echogenicity, complicated plaque, smooth plaque
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| What are examples of low resistant flow vessels? | ICA, renal artery, intracranial vessels
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| What are examples of high resistant vessels? | ECA and extremity vessels
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| Sonographically, how can the ECA and ICA be distinguished? | ICA is low resistant waveform, usually larger in diameter, only contains intracranial branches
ECA is high resistant waveform, smaller in diameter, contains extracranial branches
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| What does tardus parvus describe? | low velocity flow with delayed acceleration
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| What is the first branch off of the ECA? | Superior thyroid artery
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| How much of a difference in mmHG is a red flag for subclavian steal? | 20 mmHg
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| What are the three forms of aneurysms? | Fusiform, saccular, and dissecting
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| What causes pseudoaneurysms? | Vessel trauma
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| What is a small ovular structure that can develop in the carotid bifurcation? | Carotid Body Tumor
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| What is the overgrowth of smooth muscle and fibrous tissue in the arterial wall? | Fibromuscualr dysplasia
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| What is the intimal thickening with plaque or FMD? | Neointimal hyperplasia
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| What layers of a vessel are affected with arterial dissection? | Initma and media
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Created by:
anhake
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