Table 6.
Advice table for the use of CCT and CMR in patients with AF and procedures
| Advice for the use of CCT and CMR in patients with AF and procedures | Strength of advice | Imaging modality | CT specifications | MR specifications |
|---|---|---|---|---|
| (1) If imaging is available, LAA morphology is advised to be categorized to assess stroke risk |
|
CCT or CMR | i.v. contrast injection and imaging in arterial phase | CEMRA |
| (2) CCT or CMR may be appropriate to assess LA and PV anatomy which may be integrated into the mapping system |
|
CCT or CMR | i.v. contrast injection and imaging in arterial phase | CEMRA |
| (3) Imaging may be an appropriate alternative to TOE to rule out LAA thrombus |
|
CCT or CMR | i.v. contrast injection and imaging in arterial and delayed phase | Inversion time MDE, CEMRA and cine CMR |
| (4) Degree of atrial fibrosis may be measured by CMR to identify the appropriate candidate for ablation and to guide treatment options |
|
CMR | — | 3D inversion time MDE navigator fat sat |
AF, atrial fibrillation; CT, computed tomography; CCT, cardiac computed tomography; CEMRA, contrast enhancement magnetic resonance angiography; CMR, cardiac magnetic resonance imaging; LAA, left atrial appendage; LA, left atrium; MDE, myocardial delayed enhancement; MR, magnetic resonance; PV, pulmonary vein; TOE, transoesophageal echocardiography.