What characteristics should the Doppler signals from the proximal axillary and/ or subclavian veins display?

What are the names of the TV leaflets shown in the RVIT view?

What is vein wall coaptation indicative of?

What is the name of the structure at the blue arrow?

Which vessel acts as an intracranial collateral connecting the ECA and ICA in the COW?

Which pressure contributes to the change in vein wall shape from the pressure difference between the inside and outside of a vessel?

What is the region of the FV that becomes more difficult to compress distally?

What is the optimal patient position for the evaluation of lower extremity vessels with duplex?

What is the name of the echo structure at the red arrow?

What is the region of the FV that becomes more difficult to compress distally?