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DVT423- TH4
USIDMS Hepatoportal Doppler
Question | Answer |
---|---|
The liver receives the majority of the blood flow from the...? | Portal vein (70%) |
Does the portal vein contain valves? | No |
What does the diameter of the portal vein have to be less than? | 13 mm |
What is the most common cause of portal hypertension? | Cirrhosis, (90%) |
What are some common porto-systemic shunts? | left gastric vein, gastric varices, umbilical vein (recanalized) |
Does TIPS fix the cause of portal HTN? | No, only the symptom |
Stenosis or obstruction of the hepatic veins are called | Budd-Chiari |
What are the normal characteristics of the hepatic vein? | Spontaneous, pulsatile, hepatofugal, phasic, bidirectional |
Does the IVC diameter increase or decrease with inspiration? | Decrease |
What can cause hepatic outflow obstruction? | Hepatomegaly, Splenomegaly, Ascites, Extrinsic compression by a tummor, Thrombus in the hepatic veins or IVC |