Development of an MRI-compatible catheter for pacing the heart: initial in vitro and in vivo results.
An MRI-compatible catheter was developed for pacing the heart during MRI imaging. The device was tested in vitro and in vivo in 10 animal experiments, using spin-echo, gradient-echo, and echo-planar MRI sequences. Images were of good quality in all sequences. Pacing was effective without induced arrhythmias. Therefore, pacing the heart during MRI is feasible and seems to be safe when using dedicated hardware.
Jerzewski
A
A
Department of Cardiology, Leiden University Hospital, The Netherlands.
Pattynama
P M
PM
Steendijk
P
P
Doornbos
J
J
de Roos
A
A
Baan
J
J
D000818:Animals; D016477:Artifacts; D006328:Cardiac Catheterization / Q000295:instrumentation* / Q000379:methods; D002304:Cardiac Pacing, Artificial / Q000379:methods; D004867:Equipment Design; D005240:Feasibility Studies; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D019047:Phantoms, Imaging; D012756:Sheep