Safety of serial MRI in patients with implantable cardioverter defibrillators

M. Juhani Junttila, Joel Fishman, Gustavo A. Lopera, Pradip Pattany, Darcy L. Velazquez, Adam R. Williams, Barry H. Trachtenberg, Cristina Sanina, Jacques Mather, Joshua Hare

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Objective: While patients with cardiac implantable electronic devices could benefit from magnetic resonance (MR) imaging, the presence of such devices has been designated as an absolute contraindication to MR. Although scanning algorithms are proposed for cardiac implantable electronic devices, their safety remains uncertain. To address this issue, the safety of serial cardiac MR scans was evaluated in patients with implantable cardioverter defibrillators (ICDs). Methods: Three serial cardiac MR scans were prospectively performed at 1.5 T on 10 patients (9 men) of median age 56 years (range 51-68) with ICDs. ICD interrogation was performed before and after the MR scan and at a follow-up of median 370 days (range 274-723). Image quality was also assessed. Results: In all patients MR scanning occurred without complications. There were no differences between preand post-MR pacing capture threshold, pacing lead or high voltage lead impedance, or battery voltage values. During follow-up there were no occurrences of ICD dysfunction. Although most patients had image artifacts, the studies were generally diagnostic regarding left ventricular function and wall motion. Delayed enhancement imaging was of good quality for inferior wall and inferolateral infarcts, but ICD artifacts often affected the imaging of anterior wall infarcts. Conclusion: Serial MR scans at 1.5 T in patients with ICDs, when carefully performed in a monitored setting, have no adverse effects on either patient or device. When required, single or multiple MR scans at 1.5 T may therefore be considered for clinical diagnostic purposes in these patients.

Original languageEnglish
Pages (from-to)1852-1856
Number of pages5
JournalHeart
Volume97
Issue number22
DOIs
StatePublished - Nov 1 2011

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Implantable Defibrillators
Magnetic Resonance Spectroscopy
Safety
Equipment and Supplies
Artifacts
Equipment Safety
Electric Impedance
Left Ventricular Function
Magnetic Resonance Imaging

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Safety of serial MRI in patients with implantable cardioverter defibrillators. / Junttila, M. Juhani; Fishman, Joel; Lopera, Gustavo A.; Pattany, Pradip; Velazquez, Darcy L.; Williams, Adam R.; Trachtenberg, Barry H.; Sanina, Cristina; Mather, Jacques; Hare, Joshua.

In: Heart, Vol. 97, No. 22, 01.11.2011, p. 1852-1856.

Research output: Contribution to journalArticle

Junttila, MJ, Fishman, J, Lopera, GA, Pattany, P, Velazquez, DL, Williams, AR, Trachtenberg, BH, Sanina, C, Mather, J & Hare, J 2011, 'Safety of serial MRI in patients with implantable cardioverter defibrillators', Heart, vol. 97, no. 22, pp. 1852-1856. https://doi.org/10.1136/heartjnl-2011-300153
Junttila, M. Juhani ; Fishman, Joel ; Lopera, Gustavo A. ; Pattany, Pradip ; Velazquez, Darcy L. ; Williams, Adam R. ; Trachtenberg, Barry H. ; Sanina, Cristina ; Mather, Jacques ; Hare, Joshua. / Safety of serial MRI in patients with implantable cardioverter defibrillators. In: Heart. 2011 ; Vol. 97, No. 22. pp. 1852-1856.
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