Comprehensive Analysis of Set-Up Gain of 6-Dimensional Cone-Beam CT Correction Method in Radiotherapy for Head and Neck and Brain Tumors

Table 1

The dimensions of the five specific target volumes seen in Figures 1(b)–1(f). Shown are the target volumes, the maximal range from the center of the mass (COM) along each translational axis, and the maximal radial distance from the COM.

Targets	TVA	TVB	TVC	TVD	TVE
Volume (cc)	3.00	45.9	126.7	239.7	789.2
Range (mm)
LR^a	11.8-11.1	24.3-22.8	28.5-29.8	42.7-35.0	115.4-99.3
SI^b	10.2-11.1	17.4-21.9	28.2-31.9	51.5-70.3	70.8-52.0
AP^c	5.9-6.1	21.4-23.6	43.9-74.1	63.3-62.7	103.1-97.9
Max.^d radius (mm)	12.1	31.0	78.3	96.1	134.9

^aLR: left-to-right; ^bSI: superior-to-inferior; ^cAP: anterior-to-posterior; ^dMax.: maximum.