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DVT398-TH2
USIDMS Lower Extremity Venous
| Question | Answer |
|---|---|
| When does all venous flow stop? | deep inspiration & valsalva |
| Continuous venous wave correlates with ___? | proximal obstruction |
| Flow above the baseline during a reflux study correlates with ____? | venous insufficiency |
| What is the Latin term for "runs with arteries"? | venae comitantes |
| Spider veins are also known as ____? | lateral subdermic system |
| Perforators in the calf are known as ____? | Cockett's perforators |
| Venous insufficiency increases or decreases distal venous pressure? | increases |
| Name risk factors for DVT | post-op sx, hx of DVT, cancer, obesity, trauma, oral contraceptives, immobility, HTN, pregnancy, CHF, sickle cell anemia |
| What is Virchow's triad composed of? | circulatory stasis, vein wall trauma, hypercoagulable state |
| 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 |
| What is the ultrasound appearance name for sluggish flow? | Rouleau Formation, appears as "roll of coins", suggests a proximal obstruction |
| What does Phlegmasia Alba Dolens look like? | white, massive edema, pale limb, (ileo-femoral thrombosis) |
| What does Phlegmasia Cerulea Dolens look like? | cyanotic, massive thigh & calf edema,, (venous outflow obstructed completely) |
| What is the appearance of chronic DVT? | highly echogenic, well-attached, rigid texture, visible collaterals, contracted vessel or re-canalization, |
| Kleppel-Trenaunay syndrome deal with ____? | Hypoplastic or absent deep veins |
| Sturge-Weber syndrome deals with ____? | hypoplastic / absent deep veins, with AVM in cerebral vessels |
| Kasabach-Merritt syndrome deals with ____? | hypoplastic / absent deep veins, AVM in cerebral vessels, and capillary hemangiomas |
| May-Thurners syndrome deals with ____? | Iliac Vein compression, LEFT = most common |
| If there is no signal change with distal augment then ____? | distal DVT |
| Primary source of thrombi in LE? | soleal sinuses |