Pacemaker lead tip heating in abandoned and pacemaker‐attached leads at 1.5 tesla MRI

Langman, Deborah A.; Goldberg, Ira B.; Finn, J. Paul; Ennis, Daniel B.

doi:10.1002/jmri.22463

Cited by 133 publications

(115 citation statements)

References 24 publications

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“…Historically concerns have been raised regarding potential life-threatening interactions between PPM/ICD and MRI [54,55]. This has led to the development of more MRI conditional devices [56].…”

Section: Devices/implantsmentioning

confidence: 99%

Role of cardiac MRI and CT in Fontan circulation

Yeong

Loughborough

Hamilton

et al. 2017

J Congenit Heart Dis

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A Fontan circulation is a series of palliative surgical procedures, which result in the diversion of the systemic venous return into pulmonary arterial circulation without passing through a ventricle. It is one of the available surgical strategies for patients with cardiac defects that preclude a successful bi-ventricular repair, which encompass a range of complex anatomy. This surgical repair has gone through a series of modifications since the concept was introduced in 1971. Echocardiography remains a vital tool in assessing patients with Fontan circulations but its limitations are well recognised. Cross-sectional imaging modalities such as cardiac MRI and CT are essential components in the systematic clinical evaluation of these patients. The purpose of this review is to understand the information that can be obtained with each cross-sectional modality as well as highlight the challenges that each modality faces.

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Section: Devices/implantsmentioning

confidence: 99%

Role of cardiac MRI and CT in Fontan circulation

Yeong

Loughborough

Hamilton

et al. 2017

J Congenit Heart Dis

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“…Epicardial leads that are not cooled by blood flow 11 and abandoned leads may also be prone to increased heating. 12 Finally, implanted cardiac devices may provide unnecessary therapies or fail to provide necessary therapies when placed in the MRI scanner. Pacemakers and ICDs have the potential for receiving electromagnetic interference (EMI) in the MRI environment, resulting in radiofrequency noise tracking, asynchronous pacing, inhibition of demand pacing, delivery of ICD therapies, programming changes, or loss of function.…”

Section: Physics Of Mri Related To Devicesmentioning

confidence: 99%

“…Depending on the lead length and configuration, retained segments may be prone to significantly higher temperature rises than those attached to pulse generators. 12 It has been our practice to exclude patients with retained lead fragments and unused capped leads from MRI. However, we have performed 2 MRI examinations in the setting of absolute clinical necessity and a retained lead segment.…”

Section: Retained Leadsmentioning

confidence: 99%

Magnetic Resonance Imaging and Implantable Devices

Nazarian

Beinart

Halperin

2013

Circ: Arrhythmia and Electrophysiology

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“…In a recent paper by Langman et al (36), the effect of the lead length on RF-induced heating has been studied for attached and abandoned PM leads. In this study, a particular experimental setup has been adopted to expose the devices to a uniform magnitude and phase RF electric field.…”

Section: Lead Lengthmentioning

confidence: 99%

Role of the lead structure in MRI‐induced heating: In vitro measurements on 30 commercial pacemaker/defibrillator leads

Mattei¹,

Calcagnini²,

Censi³

et al. 2011

Magnetic Resonance in Med

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MRI-induced heating on endocardial leads is a serious concern for the safety of patients with implantable pacemakers or cardioverter-defibrillator. The lead heating depends on many factors and its amount is largely variable. In this study, we investigated the role of those structural properties of the lead that are reported on the accompanying documents of the device: (1) fixation modality (active vs. passive); (2) number of electrodes (unipolar vs. bipolar); (3) length; (4) tip surface; and (5) tip and ring resistance. In vitro temperature and specific absorption rate measurements on 30 leads (27 pacemakers, three implantable cardioverter-defibrillator leads) exposed to the radiofrequency field typical of a 1.5 T MRI scanner are presented. The data show that each lead has its own attitude to radiofrequency-induced heating and that the information that is available in the accompanying documents of the pacemaker is not sufficient to explain such attitude. Even if combined with that of the implant geometry, this information is still not sufficient to estimate the amount of heating due to the exposure to the radiofrequency field during MRI examination. Magn Reson Med 67:925-935,

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Pacemaker lead tip heating in abandoned and pacemaker‐attached leads at 1.5 tesla MRI

Cited by 133 publications

References 24 publications

Role of cardiac MRI and CT in Fontan circulation

Role of cardiac MRI and CT in Fontan circulation

Magnetic Resonance Imaging and Implantable Devices

Role of the lead structure in MRI‐induced heating: In vitro measurements on 30 commercial pacemaker/defibrillator leads

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