What ultrasound characteristic helps distinguish a bypass graft from a stent?

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Prepare for the RPVI Exam with flashcards and multiple choice questions, each with hints and explanations. Get exam-ready now!

Multiple Choice

What ultrasound characteristic helps distinguish a bypass graft from a stent?

Explanation:
A bypass graft is made from nonmetallic graft material, often Dacron, which appears on ultrasound as a woven fabric pattern around the lumen. This knit-like texture is a hallmark of graft material and helps distinguish it from a stent. Stents are metallic and show up as bright echogenic struts with potential shadowing, not a woven fabric. So, the presence of a woven, fabric-like graft wall points to a bypass graft, whereas metallic struts would suggest a stent.

A bypass graft is made from nonmetallic graft material, often Dacron, which appears on ultrasound as a woven fabric pattern around the lumen. This knit-like texture is a hallmark of graft material and helps distinguish it from a stent. Stents are metallic and show up as bright echogenic struts with potential shadowing, not a woven fabric. So, the presence of a woven, fabric-like graft wall points to a bypass graft, whereas metallic struts would suggest a stent.

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