USIDMS Lower Extremity Venous
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| When does all venous flow stop? | deep inspiration & valsalva
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| Continuous venous wave correlates with ___? | proximal obstruction
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| Flow above the baseline during a reflux study correlates with ____? | venous insufficiency
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| What is the Latin term for "runs with arteries"? | venae comitantes
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| Spider veins are also known as ____? | lateral subdermic system
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| Perforators in the calf are known as ____? | Cockett's perforators
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| Venous insufficiency increases or decreases distal venous pressure? | increases
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| Name risk factors for DVT | post-op sx, hx of DVT, cancer, obesity, trauma, oral contraceptives, immobility, HTN, pregnancy, CHF, sickle cell anemia
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| What is Virchow's triad composed of? | circulatory stasis, vein wall trauma, hypercoagulable state
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| What is the appearance of acute DVT? | spongy, not completely compressible, light echogenecity or hypoechoic, dilated vessels, will have abnormal Doppler or abnormal color fill
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| What is the ultrasound appearance name for sluggish flow? | Rouleau Formation, appears as "roll of coins", suggests a proximal obstruction
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| What does Phlegmasia Alba Dolens look like? | white, massive edema, pale limb, (ileo-femoral thrombosis)
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| What does Phlegmasia Cerulea Dolens look like? | cyanotic, massive thigh & calf edema,, (venous outflow obstructed completely)
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| What is the appearance of chronic DVT? | highly echogenic, well-attached, rigid texture, visible collaterals, contracted vessel or re-canalization,
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| Kleppel-Trenaunay syndrome deal with ____? | Hypoplastic or absent deep veins
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| Sturge-Weber syndrome deals with ____? | hypoplastic / absent deep veins, with AVM in cerebral vessels
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| Kasabach-Merritt syndrome deals with ____? | hypoplastic / absent deep veins, AVM in cerebral vessels, and capillary hemangiomas
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| May-Thurners syndrome deals with ____? | Iliac Vein compression, LEFT = most common
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| If there is no signal change with distal augment then ____? | distal DVT
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| Primary source of thrombi in LE? | soleal sinuses
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