Pacing in high field cardiac magnetic resonance imaging:.
Currently, cardiac MRI is contraindicated in patients with an implanted pacemaker or ICD due to safety hazards. However, MRI is promising to play a key role in cardiac diagnostics in near future. This study examined a rat with an implanted pacemaker pacing at a rate of 460/min with high field cardiac MRI. This study showed that pacing during cardiac imaging at 7 Tesla was possible. The pacemaker program was not disturbed by the high field or the strong gradients (maximum dB/dt 400 mT/s). The only noticeable effect on the MRI signal was a signal void of 2 cm around the device.
Nahrendorf
Matthias
M
Medizinische Universitätsklinik Würzburg, Wuerzburg, Germany. M.Nahrendorf@Medizin.uni-wuerzburg.de
Hiller
Karl-Heinz
KH
Hu
Kai
K
Zeijlemaker
Volkert
V
Griswold
Mark
M
Bauer
Wolfgang R
WR
D000818:Animals; D004562:Electrocardiography; D004574:Electromagnetic Fields / Q000009:adverse effects; D008279:Magnetic Resonance Imaging; D010138:Pacemaker, Artificial; D051381:Rats; D012984:Software