|Recommendation||Grade of Recommendation∗|
|The imaging volume should include the aortic root, aortic arch and ilio-femoral access||Strong|
|Imaging of the aortic root should be performed using ECG-synchronized acquisition||Strong|
|Imaging of the aorta and iliofemoral vessels can be performed without ECG synchronization||Strong|
|Choice of acquisition mode should be tailored according to available scanner technology||Strong|
|CT acquisitions should focus on optimization of image quality while in accordance with ALARA principles||Strong|
|Thin slice collimation and reconstructed slice thickness ≤1 mm for the root and ≤1.5 mm for the peripheral vasculature should be obtained and used.||Strong|
|In patients with an eGFR ≥30 ml/min/1.73 m2 no pre hydration is required||Weak|
|In patients with eGFR <30 ml/min/1.73 m2 reduction of iodinated contrast volume and prehydration may be considered||Strong|
|Routine use of beta blockade is not recommended.||Strong|
|Beta blocker use may be considered in selected cases and should be used cautiously with careful clinical oversight||Strong|
|Use of nitroglycerin is contra-indicated||Strong|
ALARA = as low as reasonably achievable; ECG = electrocardiogram; eGFR = estimated glomerular filtration rate; CT = computed tomography; TAVI = transcatheter aortic valve implantation; TAVR = transcatheter aortic valve replacement.
↵∗ Based on level of consensus.