Key result
Chest CT scans in patients with cardiac implantable electronic devices caused electromagnetic interference in only 19 of 2,362 scans, all in older models, resulting in no adverse events.
Why the study?
Whether diagnostic CT scans to CIEDs is safe in recent models remained unknown.
Does diagnostic chest computed tomography cause electromagnetic interference or adverse events in patients with modern cardiac implantable electronic devices?
Observational (n=2,362)
Yes
Does diagnostic chest computed tomography cause electromagnetic interference or adverse events in patients with modern cardiac implantable electronic devices?
Diagnostic chest CT scans are safe for patients with modern cardiac implantable electronic devices, causing no adverse events and rare electromagnetic interference limited to older models.
Supports safety of CT in modern CIEDs; leaves open need for prospective confirmation before routine adoption.
INTRODUCTION: Whether diagnostic computed tomography (CT) scans to cardiac implantable electronic devices (CIED) is safe in recent models remains unknown. METHODS: A two-centers observational study. Over 14 years, consecutive 2362 chest CT scans (1666 pacemakers [PMs], 145 cardiac resynchronization therapy PM, 316 implantable cardioverter-defibrillator, and 233 cardiac resynchronization therapy defibrillator) were interrogated and monitored upon imaging. RESULTS: Electromagnetic interference occurred only in a few old models: InSync 8040 (n = 14), InSync III Marquis (n = 1), and Kappa (n = 4), which resulted no adverse events. CONCLUSION: CIEDs, especially recent ones, are confirmed safe on chest CT.
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Tsutsui et al. (2022) conducted an observational in Cardiac implantable electronic devices (CIED) (n=2,362). Chest computed tomography (CT) scans was evaluated on Electromagnetic interference and adverse events. Chest CT scans in patients with cardiac implantable electronic devices caused electromagnetic interference in only 19 of 2,362 scans, all in older models, resulting in no adverse events.
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