Table 1 CT acquisition parameters

CT scanner

Somatom Definition Flash (Siemens Healthcare), dual source stellar detector

Contrast type/volume/injection rate/delay

Omnipaque 350/ 120 ml/ 3 ml/s /100 s

kVp

100 kVp and 140 kVp

Collimation/slice width/pitch

128 × 0.6 mm/3 mm/ 0.75

Kernels/increments/reformations

B30 (soft tissue) and B70 (bone)/3 mm/ bone and soft tissue axial, paracoronal and parasagittal 3 × 3 mm reformats using the mixed dataset