MRI Safety information for:

Medtronic

Descending thoracic aorta endovascular stent-graft

Nonclinical testing has demonstrated that the Valiant thoracic stent graft is MR Conditional.

Patients with impaired renal function (i.e., renal insufficiency) may also be considered for magnetic resonance imaging (MRI) or angiography (MRA) at the discretion of the physician. Artifact may occur related to the stent, and care should be used to insure adequate imaging of the outer aortic wall to assess TAA or false lumen size. Volume measurement may be helpful if the aneurysm or false lumen is not clearly shrinking. If there are concerns regarding imaging of calcified areas, fixation sites, or the outer wall of the aneurysm sac or false lumen, adjunctive CT without contrast may be needed.