Low-field (0.2 T) MRI was performed safely in 114 pacemaker patients with no induction of arrhythmias, inhibition of output, or significant changes in lead impedance, threshold, or battery (P>0.05).
Observational (n=114)
p-value: p=>0.05
AIMS: The number of low-field (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.
Strach et al. (Wed,) conducted a observational in Pacemaker patients requiring MRI (n=114). Low-field (0.2 T) magnetic resonance imaging was evaluated on Safety (induction of arrhythmias, inhibition of PM output, changes in lead impedance, pacing capture threshold, and battery voltage) (p=>0.05). Low-field (0.2 T) MRI was performed safely in 114 pacemaker patients with no induction of arrhythmias, inhibition of output, or significant changes in lead impedance, threshold, or battery (P>0.05).
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