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Outline of CT scanning protocol^{^a}
Varying Parameters Scan No. MDCT Scan Type Scan mA Scan kV Section Thickness Pitch
MDCT 1 16 Axial 140 120 5 0.98
2 64 Axial 140 120 5 0.98
3 64 Axial 140 120 5 0.98
4 64 Helical 140 120 5 0.98
Acquisition Mode 5 64 Helical 80 120 5 0.98
6 64 Helical 100 120 5 0.98
Milliampere 7 64 Helical 120 120 5 0.98
8 64 Helical 140 120 5 0.51
9 64 Helical 140 80 5 0.98
10 64 Helical 140 100 5 0.98
Kilovolt 11 64 Helical 140 120 5 0.98
12 64 Helical 140 140 5 0.98
13 64 Helical 140 120 5 0.51
14 64 Helical 140 120 5 0.98
Pitch 15 64 Helical 140 120 5 1.37
16 64 Helical 140 120 5 1.75
17 64 Helical 140 120 0.625 0.98
18 64 Helical 140 120 1.25 0.98
Section thickness 19 64 Helical 140 120 2.5 0.98
20 64 Helical 140 120 5 0.98
↵a Eight CT scanning parameters were varied during serial CT acquisitions.

Varying Parameters	Scan No.	MDCT	Scan Type	Scan mA	Scan kV	Section Thickness	Pitch
MDCT	1	16	Axial	140	120	5	0.98
	2	64	Axial	140	120	5	0.98
	3	64	Axial	140	120	5	0.98
	4	64	Helical	140	120	5	0.98
Acquisition Mode	5	64	Helical	80	120	5	0.98
Acquisition Mode	6	64	Helical	100	120	5	0.98
Milliampere	7	64	Helical	120	120	5	0.98
	8	64	Helical	140	120	5	0.51
	9	64	Helical	140	80	5	0.98
	10	64	Helical	140	100	5	0.98
Kilovolt	11	64	Helical	140	120	5	0.98
	12	64	Helical	140	140	5	0.98
	13	64	Helical	140	120	5	0.51
	14	64	Helical	140	120	5	0.98
Pitch	15	64	Helical	140	120	5	1.37
	16	64	Helical	140	120	5	1.75
	17	64	Helical	140	120	0.625	0.98
	18	64	Helical	140	120	1.25	0.98
Section thickness	19	64	Helical	140	120	2.5	0.98
Section thickness	20	64	Helical	140	120	5	0.98