Table 2 CT measured parameters

Access angle (degrees)

42 ± 11

40 [34, 49]

Distance from incision (mm)

86 ± 12

86 [77, 95]

Calcium volume (mm³)

6.9 · 10 ² ± 5.1 · 10²

6.0 · 10² [2.8, 9.2] · 10²

Annulus minimum diameter (mm)

23.8 ± 3.3

23.3 [21.4, 26.0]

Annulus maximum diameter (mm)

29.1 ± 4.1

27.8 [27.0, 30.5]

Annulus area (mm²)

5.5 · 10² ± 1.8 · 10²

5.1 · 10² [4.4, 6.1] · 10²

Annulus perimeter (mm)

8.5 · 10¹ ± 1.2 · 10¹

8.2 [7.0, 11] · 10¹