Table 3.
Clinical parameters grouped by the quality of the DE-MRI.
| Adequate MRI group | Inadequate MRI group | Pvalue | |
|---|---|---|---|
| (n=8) | (n=4) | ||
| Cardiac rhythm during MRI | 1.00 | ||
| Sinus rhythm (n, %) | 7(92%) | 4(100%) | |
| Atrial fibrillation (n,%) | 1(8%) | 0(0%) | |
| Use of metoprolol (n, %) | 8(100%) | 4(100%) | N.A. |
| Dose of metoprolol | 0.22 | ||
| 20 mg (n, %) | 2(25%) | 3(75%) | |
| 40 mg (n, %) | 6(75%) | 1(25%) | |
| Heart rate (bpm) | 68±5 | 79±9 | 0.021 |
| Time to MRI (days) | 44(32; 300) | 3(2; 11) | 0.004 |
| After AF ablation | |||
| AF history (months) | 51(27; 72) | 73(12; 201) | 0.067 |
| Lone AF, (n, %) | 3(38%) | 1(25%) | 0.81 |
| LAA flow (cm/s) | 53±21 | 82±25 | 0.059 |
| Left atrial diameter (mm) | 42±8 | 37±5 | 0.35 |
| LV ejection fraction (%) | 57±9 | 54±9 | 0.61 |
MRI=magnetic resonance image, AF=atrial fibrillation, LAA=left atrial appendage, LV=left ventricle.