Road Mapping in fluoroscopy

What is Road Mapping in fluoroscopy?

“Road mapping” is an imaging technique present on many modern fluoroscopy units. An arteriogram is performed first. When the road map function is selected, the fluoroscopy monitor displays a static subtracted angiographic image from this prior run.

When fluoroscopy is performed, a real-time subtracted fluoroscopic image is superimposed on the static angiogram. In effect, the vessels are highlighted with everything but the motion of the catheter and guidewire subtracted out. This technique facilitates selection of small or tortuous vessels.


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