Table 2:

Organ volume comparisons between the original voxel volume and the volume of the imported DICOM structures as reported by the Varian Eclipse TPS and the CERR viewing platform for six organs in three different-aged male voxel phantoms

Organ	Age (m)	Original Voxel Volume	Eclipse-Reported Volume	% difference	CERR-Reported Volume	% difference
Brain	1	920.96	925.07	0.4%	927.79	0.7%
	5	1195.69	1185.87	−0.8%	1198.34	0.2%
	15	1359.89	1346.09	−1.0%	1362.44	0.2%
Colon	1	98.95	94.52	−4.5%	99.09	0.1%
	5	204.99	195.57	−4.6%	205.25	0.1%
	15	525.57	502.98	−4.3%	525.87	0.1%
Heart	1	93.42	93.22	−0.2%	94.99	1.7%
	5	208.79	205.37	−1.6%	209.23	0.2%
	15	624.55	615.29	−1.5%	625.37	0.1%
Lungs	1	374.86	376.44	0.4%	380.18	1.4%
	5	711.50	698.79	−1.8%	713.48	0.3%
	15	2622.27	2585.90	−1.4%	2622.71	0.0%
Testes	1	1.44	1.37	−4.9%	1.48	2.8%
	5	1.63	1.36	−16.6%	1.64	0.6%
	15	15.41	14.01	−9.1%	15.42	0.1%
Thyroid	1	1.71	1.49	−12.9%	1.78	4.1%
	5	3.23	2.76	−14.6%	3.24	0.3%
	15	11.46	10.06	−12.2%	11.47	0.1%