Can occur due to CHF, extrinsic compression, renal cell carcinoma and other causes of blood stasis
Echogenic material identified in normally anechoic lumen
Pulmonary embolism risk is very high
Note: Click any image to enlarge.
Used to prevent emboli from reaching the lungs
Surgically inserted into the IVC in patients with a history of DVT in the pelvis and lower extremities
Appears as an echogenic "umbrella" in the lumen of the IVC
GREAT VESSEL ANATOMY AND SONOGRAPHIC EVALUATION
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Blood Vessel Anatomy:
Tunica Intima-inner layer endothelial cells, basement membrane is the innermost layer of intimal cells
Tunica Media-middle layer, muscle, thicker and more organized layer in arteries