- Poster presentation
- Open Access
Cardiovascular magnetic resonance imaging in patients with MR-conditional devices: a UK tertiary centre experience on image quality and change in patients management
© Ahmed et al; licensee BioMed Central Ltd. 2015
- Published: 3 February 2015
- Cardiovascular Magnetic Resonance
- Late Gadolinium Enhancement
- Late Gadolinium Enhancement Image
- Cardiac Device
- Cardiovascular Magnetic Resonance Examination
Cardiovascular magnetic resonance (CMR) examinations is increasingly used in daily clinical practice. Conventional pacemakers and implantable cardioverter-defibrillators (ICD) have always been regarded as a contraindication to MR imaging. However the introduction of MR-conditional systems have significantly improved access to MR examinations. Limited data exists regarding indications and management outcomes and impact of different cardiac rhythm devices on image quality
Between June 2012 to September 2014 we identified 34 consecutive patients with cardiac rhythm devices who were referred for a CMR examination in our tertiary cardiothoracic centre. All devices were interrogated pre-CMR and post-CMR to minimize interference with the electromagnetic fields and in case reprogrammed after the CMR. All scans were performed on 1.5 Tesla with eight-channel phased-array receiver coils. The indication of CMR and impact of CMR findings on patient management was also recorded.
Diagnosis by CMR n=15 (44%)
CMR Impact on management n=(34%)
Infiltrative disease (amyloidosis/ sarcoidosis)
Assessment of LV function
Aetiology for syncope & AV block
Iron over loading
Congenital heart disease
Overall, CMR established a new diagnosis in 44% of the patients, and provided additional information with impact on clinical management in 34% of the patients.
CMR can be performed safely in patients with ILR and MR conditional pacemakers with strictly defined cardiologic and radiologic protocols and monitoring. Most of the devices, particularly ILR, can cause artefacts but the interference with the diagnostic accuracy of the CMR scan is only minor. In patient with MR-conditional device, CMR can provide important diagnostic information that can impact management.
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