. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Radiother Oncol. 2015 Mar 26;115(1):22–29. doi: 10.1016/j.radonc.2015.02.022

Table 1.

Five imaging sets acquired with varying gantry rotation speeds for the phantom.

Acquisition Set	Scan Angle	GRS (°/s)	No. of Projections	Sampling Interval (°/prj)	Imaging Time (s)	mAs
1	−15°~15° & 75°~105°	0.25	1671	0.4 ± 0.4	240 + 10	535
2		0.5	834	0.7 ± 0.9	120 + 10	267
3		1	416	1.4 ± 1.7	60 + 10	133
4		2	207	2.8 ± 3.5	30 + 10	66
5		4	103	5.5 ± 6.8	15 + 10	33

GRS: gantry rotation speed; No. of projections: total number of 4D projections acquired; Sampling Interval: average sampling interval (± standard deviation) of phase-binned projections. °/prj: degree per projection.