Table 1. Patient demographics and CT information.

Patient	#1	#2	#3
Age/Gender	59Y/F	36Y/M	49Y/M
Scanner	Toshiba/Aquilion	GE/Discovery	GE/Lightspeed
Algorithm	FC30	Bone	Bone
Pixel size (mm)	0.287	0.346	0.332
Slice thickness (mm)	0.5	0.625	1.250
Slice increment (mm)	0.3	0.625	0.6

Different CT scanners and protocols were used for CT acquisition in each patient.