|Recommendation||Grade of Recommendation∗|
|Annulus assessment and planning|
|While facilitated or semi-automated workflows may be used, the interpreter analyzing the imaging must be able to confirm the accuracy of the generated annular plane and perform manual corrections if required.||Strong|
|Systolic measurements are preferred for measurement and calculation of device sizing||Strong|
|Area and perimeter measurements are preferred for sizing of the aortic annulus over isolated 2 dimensional measurements and should be provided in the report||Strong|
|Landing zone calcification|
|Annular and subannular calcification should be qualitatively described regarding morphology and extent as well as relation to the aortic valve cusps.||Strong|
|Number of cusps should be stated, and if a bicuspid valve is present, its morphology should be classified.||Strong|
|The presence of a median raphe and the absence/presence of calcification of this should be mentioned||Strong|
|The aortic annulus size should be measured and reported in bicuspid aortic valves as for tricuspid aortic valves.||Strong|
|Aortic root measurement|
|Pre-TAVI/TAVR CT assessment should include coronary height, mean SOV diameter, and STJ height and diameter||Strong|
|Coronary ostial distance from aortic annulus should be measured in a perpendicular fashion from the established annular plane||Strong|
CT = computed tomography; SOV = sinus of valsalva; STJ = sinotubular junction; TAVI = transcatheter aortic valve implantation; TAVR = transcatheter aortic valve replacement.
↵∗ Based on level of consensus.