Absence of movement of coronary scents after placement in a magnetic resonance imaging field

Magnetic resonance of coronary arteries

“…All these methods suffer from problems of limited resolution, relatively low signal to noise, and are limited in the extent of arterial tree that can be displayed. The increasing use of coronary stents during interventional cardiology represents an imaging hurdle to overcome as the stents may produce substantial artefact; however, CMR is safe to the patient soon after stent implantation [66,67], and no significant interaction of the stents with the magnetic field has been demonstrated [68]. At present, to assess for coronary disease, routine coronary MRA cannot be justified, although there are certain cases where X-ray angiography has failed to yield a satisfactory result where it may be used successfully [69].…”

Coronary MR Angiography: Current Status

“…Imaging of patients with intracoronary stents has been shown to be safe, as neither motion [52] nor local tissue warming [18] is of particular concern. However, the local image artifact from intracoronary stents makes the visual assessment Coronary MRA (panels A and B) and corresponding X-ray angiogram (panel C) in a patient with RCA disease.…”

Magnetic Resonance Angiography

“…However, a growing obstacle to coronary MRA is the use of intracoronary stents. Although not a contraindication for MRA 200 (up to field strengths of 1.5 T), local signal voids induced by the stent preclude assessment of the stented portion of the vessel. 201 The relatively stationary position of saphenous vein and internal mammary artery bypass grafts offsets many of the technical challenges of native vessel coronary MRA.…”