TABLE 1

Measured Tumor Volumes: Comparison Between Measurements from CT Data Versus Manual Caliper Measurements

	Volume
Tumor	Ex vivo manual (mL)	In vivo CT (mL)	Ex vivo CT (mL)	In vivo CT/ex vivo CT	Ex vivo manual/in vivo CT
1	0.106	^*	0.201	NA	NA
2	0.084	0.140	0.133	1.053	0.604
3	0.147	0.268	0.262	1.023	0.548
4	0.071	0.092	0.082	1.122	0.767
5	0.123	0.248	0.251	0.988	0.497
6	0.100	0.097	0.098	0.990	1.029
7	0.103	0.141	0.134	1.052	0.729
Mean				1.038	0.695
SD				0.050	0.193

↵* Accurate segmentation not possible.
NA = not applicable.