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Abstract #3890

The Compatibility of Temporary Pacemaker Leads with Magnetic Resonance Imaging an Ex Vivo Tissue Study

Reinhard Rzanny1, Andreas Hansch2, Alexander Pfeil3, Alexander Gussew1, Stefanie Drobnik4, Jrgen R. Reichenbach5

1Medical Physics Group, Department of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany; 2Department of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany; 3Department of Internal Medicine III, Jena University Hospital, Jena, Germany; 4Department of Cardiothoracic Surgery, Jena University Hospital, Jena, Germany; 5Medical Physics Group, Department of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany


The presence of pacemaker leads is considered to be a safety contraindication for MRI. To measure heating effects at the tip of temporary pacemaker leads, the frequency shift of water was estimated by single voxel 1H-MRS. The temperature dependence of the water frequency in the myocardial tissue was estimated in prior preliminary experiments during 3 warming and cooling cycles of a heart between 20 and 40C. As a result of applying several MR imaging sequences on 12 pig hearts with implanted temporary pacemaker leads in a whole body MRI (1.5 T), no substantial heating was observed.