DMIS 1131: class 2 veins
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Created by:
cole1321 on September 30, 2012
Description:
IVC obstruction
renal vein enlargement
renal vein thrombosis
venous aneurysms
portal venous abnormalities
portosystemic shunts
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Set copied from CarrieMines
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24 terms
Terms | Definitions |
|---|---|
 With an IVC obstruction, increase in caliper will be where? | below the point of obstruction |
| What are the most common causes of IVC obstruction? | right heart failure enlarged liver lymph node enlargement |
| What can be placed in the IVC to prevent a clot from moving to the heart? | filter |
| Sonographically, fresh clots appear how? | sonolucent |
| Sonographically, older clots appear more what? | hemorrhagic hyperechoic (brighter) |
| Tumors in the IVC are most often caused by what? | metastases |
| Sonographically, a tumor will appear as what? | echogenic FOCI IN VESSEL |
| What causes renal vein enlargement? | portal hypertension thrombosis tumor |
| What is used exclusively to sonographically evaluate the renal veins? | doppler |
| Although rare, venous aneurysms occur primarily where? | neck & lower extremities portal vein |
| Portal vein aneurysms are caused by what? | pancreatitis portal vein hypertension congenital |
| Which vein on the upper portion of the main portal vein is not commonly seen on ultrasound? | umbilical vein |
| What can cause portal vein thrombosis? | portal hypertension inflammation from an abdominal process appendicitis/pancreatitis surgery |
| What are the clinical signs of portal vein thrombosis? | pain low grade fever nausea leukocytosis |
| Sonographically, how can a portal vein thrombosis be detected? | clot in vessel collateral circulation unable to visualize portal vein |
| An increase in portal venous pressure resulting in the vein measuring >13 mm is considered what? | portal hypertension |
| What causes portal hypertension? | fatty infiltration of the liver inflammation (from alcoholism/cirrhosis) |
| What are the clinic signs of portal hypertension? | ascites GI bleeding |
| What is the treatment for portal hypertension? | transjugular intrahepatic portosystemic shunt (TIPS) |
| What is TIPS? | metal stent placed between a hepatic vein & intrahepatic portal vein to the jugular vein (usually the right veins) |
| What can be seen sonographically when a patient has been treated with a TIPS? | a bright white-echogenic tubular structure between the portal and hepatic veins |
| What complications can arise from TIPS? | occlusion stenosis |
| When are arterial/venous shunts & fistulas commonly placed? | dialysis (treating kidney disease) biopsy of kidney or femoral artery |
| What can be sonographically visualized when arterial/venous shunts & fistulas are placed? | turbulent/swirling of blood on color doppler |
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