Table 2.
Artefacts induced by the generator per CIED model
| n (%) | PM | 135 (78.9%) | ICD | 22 (12.9%) | CRT-D | 9 (5.3%) | CRT-P | 5 (2.9%) | Total n = 171 | |
|---|---|---|---|---|---|---|---|---|---|---|
| n | Median (IQR) | n | Median (IQR) | n | Median (IQR) | n | Median (IQR) | p valuea | p values of post hoc comparisons | |
| Susceptibility signal-void artefact diameter measured from coronal localiser (bSSFP), cm | 126 | 8.9 (7.9–9.8) | 19 | 13.6 (12.6–14.5) | 7 | 14.1 (13.0–14.8) | 5 | 9.5 (9.0–9.7) | < 0.001 | < 0.001 (PM–ICD) < 0.001 (PM–CRT-D) 0.045 (CRT-P–ICD) |
| Banding artefact distance measured from coronal localiser (bSSFP), cm | 126 | 10.4 (8.9–12.3) | 19 | 20.6 (18.2–21.7) | 7 | 18.8 (18.2–24.6) | 5 | 11.8 (10.3–13.3) | < 0.001 | < 0.001 (PM–ICD) < 0.001 (PM–CRT-D) |
| Generator distance from the heart, measured from coronal localiser (bSSFP), cm | 126 | 10.3 (8.6–12.0) | 19 | 10.0 (8.5–11.9) | 7 | 10.5 (7.9–11.3) | 5 | 7.3 (6.5–10.7) | 0.341 |
aKruskal-Wallis test p value
bSSFP balanced steady-state free precession
CIED cardiac implantable electronic device
CRT-D cardiac resynchronization therapy defibrillator
CRT-P cardiac resynchronization therapy pacemaker
ICD implantable cardioverter-defibrillator
LGE late-gadolinium enhancement
IQR interquartile range
PM pacemaker