| Low-field magnetic resonance imaging: increased safety for pacemaker patients? | |
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MedLine Citation:
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PMID: 20356915 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: The number of low-field (<0.5 T) magnetic resonance (MR) scanners installed worldwide is increasing due to a favourable cost and safety profile and improved patient comfort using an open-scanner design. Therefore, the aim of our study was to evaluate a strategy for the safe performance of magnetic resonance imaging (MRI) at a field strength of 0.2 T, in pacemaker (PM) patients without limitations on scan region, PM dependency, or the presence of abandoned leads. METHODS AND RESULTS: One hundred and fourteen PM patients, including PM-dependent patients and patients with abandoned leads, examined at a 0.2 T MR scanner due to an urgent clinical need for an MRI examination, were evaluated. All PMs were reprogrammed before MRI: if heart rate was <60 bpm, the asynchronous mode (with a rate of 80 bpm) was programmed to avoid MR-induced inhibition; if heart rate was >60 bpm, sense-only mode (ODO/OVO/OAO) was used to avoid MR-induced competitive pacing and potential proarrhythmia. Patients were monitored with electrocardiogram (ECG) and pulse oximetry. All PMs were interrogated before and after MRI, including measurement of lead impedance, pacing capture threshold (PCT), and battery voltage. All MRI scans were completed safely. No induction of arrhythmias or inhibition of PM output occurred. There were no statistically significant changes in lead impedance, PCT, or battery voltage (P>0.05). CONCLUSION: Low-field MRI of PM patients, including high-risk PM patients and MRI scan regions, can be performed with an acceptable risk-benefit ratio under controlled conditions. |
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Authors:
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Katharina Strach; Claas Philip Naehle; Artur Mühlsteffen; Michael Hinz; Adam Bernstein; Daniel Thomas; Markus Linhart; Carsten Meyer; Sascha Bitaraf; Hans Schild; Torsten Sommer |
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Publication Detail:
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Type: Journal Article Date: 2010-03-31 |
Journal Detail:
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Title: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology Volume: 12 ISSN: 1532-2092 ISO Abbreviation: Europace Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-06-22 Completed Date: 2010-10-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100883649 Medline TA: Europace Country: England |
Other Details:
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Languages: eng Pagination: 952-60 Citation Subset: IM |
Affiliation:
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Department of Radiology, University Hospital Bonn, Sigmund Freud Street 25, Bonn 53105, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Body Burden* Female Humans Magnetic Resonance Imaging* Male Middle Aged Pacemaker, Artificial* Radiation Dosage* Whole Body Imaging* Whole-Body Counting* |
| Comments/Corrections | |
Comment In:
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Europace. 2010 Jul;12(7):918-20
[PMID:
20488860
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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