Venous Imaging Techniques
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What are two other things that may cause a vein to increase in size?
- 1.) Proximal compression
- 2.) Valsalva maneuver
What are 6 Non-thrombotic structures that can be mistaken for veins?
- 1.) Lymph nodes
- 2.) Popliteal cyst
- 3.) Hematoma or abscess
- 4.) Nerves
- 5.) Bowel
- 6.) Edema
What are 3 Non-thrombotic structures located inside veins that can be mistaken for thrombus?
- 1.) Venous Catheters
- 2.) Valves
- 3.) Stents
What Doppler characteristics are evaluated in lower venous extremity scanning?
- 1.) phasic flow
- 2.) competency of valves
- 3.) augmentation of flow-venous destruction
What are two ways to differ superficial veins from deep veins?
- Superficial veins:
- 1.) no accumptying artery
- 2.) lies between two fascia borders
What are 4 rules to follow when following the saphenous vein where it bifurcates?
- 1.) follow the largest vessel
- 2.) follow the fascial border
- 3.) follow the deepest branch
- 4.) follow the correct location
What vessels do the Soleal Sinuses connect to in the calf?
- Posterior tibial v.
- Peroneal V.
What bone do peroneal vessels lay superior to in a medial approach?
What should Color Doppler never replace?
Scanning in the transverse plane with compression with prode pressure.
What does "bi-fed" system mean?
two veins instead of one
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