Table 5. Reported studies of MRI in cardiac implantable electronic device.
| Publication | Design | No. of patients | Main findings |
|---|---|---|---|
| MRI with MRI-unsafe pacemakers | |||
| Sommer et al.10) | Single-centre prospective | 82 | Increased capture threshold post MRI at 1.5 T. |
| Gimbel et al.9) | Single-centre retrospective | 5 | There was no adverse events associated with MRI. |
| Pulver et al.15) (+epicardial leads) | Single-centre retrospective | 8 | Minimal changes (not felt to be clinically important) in device parmeters without clinical significance. |
| Nazarian et al.8) | Single-centre prospective | 31 | No abnormalities during 1.5-T MRI or 99 days' follow-up. |
| MRI with MRI-conditional pacemakers | |||
| Gimbel et al.16) | Multicentre prospective | 263 | No MRI-related complications were reported during or after MRI. |
| MRI with ICD devices | |||
| Nazarian et al.8) | Single-centre prospective | 24 | No abnormalities during 1.5-T MRI or 99 days' follow-up. |
| Mollerus et al.17) | Single-centre prospective | 22 | MRI at 1.5 T was associated with decreased sensing amplitudes and pace impedances. |
| Keller et al.2) n (S-ICD) | Single-centre prospective | 15 | No evidence of device malfunction was observed. |
| Bailey et al.4) | Multicentre prospective | 0226 | No adverse events occurred, resulting in an SADE-free rate of 100.0%. |
| Kypta et al.5) | Single-centre prospective | 18 | Lead impedances after the MRI scan were significantly lower as compared with baseline values without clinical significance. |
| Wollmann et al.18) | Single-centre prospective | 36 | In seven patients, a >100% increase in ventricular PCT was measured, this was maintained till the end of 15-month follow-up in only two patients. |
| MRI with abandoned leads | |||
| Higgins et al.19) (+ICD leads) | Single-centre retrospective study | 19 | There was no adverse events associated with MRI. |
| MRI with CRT (LV) leads | |||
| Sheldon et al.20) | Multicentre prospective | 40 | There were no overall differences in pre- and post-MRI interrogation of LV lead. |
MRI: magnetic resonance imaging, ICD: implantable cardioverter-defibrillator, CRT: cardiac resynchronization therapy, LV: left ventricular, PCT: pacing capture threshold, SADE: serious adverse device effect