Table 1.

Specifications of CT scans used as gold standard

CT scan specification	Median (IQR)
No. of rows	128 (128–256)
Spiral pitch factor	0.98 (0.8–1.38)
Peak tube voltage (kV)	120 (100–120)
Tube current (mA)	92 (54–187)
Slice thickness (mm)	0.65 (0.63–0.75)
Single detector collimation (mm)	0.60 (0.60–0.63)
Rotation speed (s)	0.50 (0.50–0.50)
CTDIvol (mGy)	6.60 (1.68–12.51)
Voxel size	0.71 (0.63–0.75)

CTDI_vol volume computed tomography dose index, CT computed tomography, IQR interquartile range