Karl-Heinz
Herrmann1, Anne Rsler2,3, Andreas Hansch4,
Stefan OR Pfleiderer5, Jrgen R. Reichenbach2
1Medical Physics Group, Department of Diagnostic and
Interventional Radiology, Jena
University Hospital , Jena, Thringen, Germany; 2Medical Physics
Group, Department of Diagnostic and
Interventional Radiology, Jena
University Hospital, Jena, Thringen, Germany; 3Department of
Medical Engineering and Biotechnology, University of Applied Sciences, Jena,
Germany; 4Department of Diagnostic and Interventional Radiology, Jena University Hospital, Jena,
Germany; 5Central Institute for Diagnostics and Nuclear Medicine,
Clinical Center Bremerhaven-Reinkenheide, Germany
While
some manufacturers provide MR compatibility certifications for stents, the actual imaging artifacts after
implantation may still vary widely. To assess and predict imaging artifacts
produced by implanted stents, characterization of both, magnetic and rf
properties, is necessary. In this study effective susceptibilities and maps
of the flip angle distribution were determined from MR imaging data for
different stent types.