Magnetic resonance angiography (MRA) is an important tool in evaluating the patency of vessels which have previously been stented. Neuroform stents (Boston Scientific, Natick, MA, U.S.A.) are utilized to provide a scaffold across the neck of an aneurysm. These stents are synthesized from Nitinol (nickel and titanium) and thus cause minimal distortion upon imaging with MRA. Patients who have undergone Neuroform stent assisted coiling of aneurysms are routinely followed with MRA to delineate stenosis of the stented segment of vessel as well as recurrence of the aneurysms. While numerous reports show that Neuroform stents do not lead to MRA imaging artifact, we report of a case where the utilization of the Neuroform stent led to a signal drop out at the site of the stent upon evaluation with MRA and thus led to further invasive radiological procedures.
Pandey MD, Aditya S.; Severson III MD, Meryl A.; and Rosenwasser MD, Robert H.
"Case Report: Signal Drop on MRA Imaging of the Internal Carotid Artery after Neuroform Stent Placement,"
JHN Journal: Vol. 4
, Article 1.
Available at: http://jdc.jefferson.edu/jhnj/vol4/iss1/1