Abbreviated PTFE, a synthetic graft material used to create grafts and blood vessel patches; a common brand name is Gore Tex
A. in-stent stenosis
B. polytetrafluorothylene
C. arteriotomy
D. carotid artery stenting
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During duplex assessment of a carotid artery stent, velocities at the distal end of the stent reach 350 cm/s. Turbulence is noted distal to this area. What do these findings suggest?
A. > 30% in-stent stenosis
B. >80% in-stent stenosis
C. >50% in-stent stenosis
D. normal finding in the stent
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