Table 3.
Right ventricular pacing lead-induced artefact area on CMR per CIED model and sequence type
| 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 value | |
| bSSFP | |||||||||
| Cine SAX RV lead artefact area (cm2) | 115 | 1.6 (1.2–2.1) | 5 | 1.9 (1.1–2.3) | 4 | 2.3 (2.1–3.5) | 4 | 1.6 (1.1–1.8) | 0.118 |
| LGE SAX RV lead artefact area (cm2) | 110 | 1.6 (1.3–2.1) | 2 | 1.2 | 5 | 1.9 (1.9–2.2) | 1 | 1.1 | 0.160 |
| PSIR SAX RV lead artefact area (cm2) | 113 | 1.6 (1.2–2.1) | 4 | 1.2 (0.9–1.7) | 6 | 1.9 (1.5–2.4) | 3 | 1.1 | 0.283 |
| SPGR | |||||||||
| Cine SAX RV lead artefact area (cm2) | 21 | 1.8 (1.3–2.4) | 18 | 1.4 (1.1–1.8) | 4 | 1.4 (1.3–2.3) | 3 | 2.0 | 0.083 |
| LGE SAX RV lead artefact area (cm2) | 14 | 2.1 (1.3–2.7) | 16 | 1.8 (1.4–2.1) | 3 | 2.3 | 2 | 2.5 | 0.399 |
| PSIR SAX RV lead artefact area (cm2) | 16 | 1.8 (1.3–2.5) | 16 | 1.8 (1.2–2.3) | 2 | 1.6 | 2 | 1.3 | 0.759 |
bSSFP balanced steady-state free precession
CIED cardiac implantable electronic device
CMR cardiac magnetic resonance imaging
CRT-D cardiac resynchronization therapy defibrillator
CRT-P cardiac resynchronization therapy pacemaker
ICD implantable cardioverter-defibrillator
LGE late-gadolinium enhancement
PM pacemaker
PSIR phase-sensitive inversion recovery
RV right ventricular
SAX short axis
SPGR spoiled gradient echo