Registration uncertainties between 3D cone beam computed tomography and different reference CT datasets in lung stereotactic body radiation therapy

Table 3 3D registration differences

Δ3D couch shift; SD and range (minimum/maximum)
	Automatic		Manual			Automatic vs manual
	SD [mm]	Range [mm]	SD [mm]	Range [mm]		SD [mm]	Range [mm]
AIPvsPCT	1.5	0.3/8.5	1.3	0.8/5.7	∆PCT	1.7	0.4/8.3
MIPvsPCT	1.7	0.4/8.8	1.4	0.7/6.1	∆AIP	1.1	0.2/6.1
MidVvsPCT	1.5	0.2/9.9	1.5	0.4/6.1	∆MIP	1.2	0.7/5.4
AIPvsMIP	0.9	0.1/4.4	1.2	0.6/6.7	∆MidV	1.9	0.3/9.9
AIPvsMidV	1.3	0.1/7.6	1.1	0.3/6.4
MIPvsMidV	1.8	0.1/10.5	1.6	0.3/6.4

SD and range (minimum and maximum) of 3D couch shift differences between the registered CT datasets over all patients
PCT slow planning CT, AIP average intensity projection; MIP maximum intensity projection; MidV mid-ventilation

ISSN: 1748-717X