Table 3. Comparison of the Sørensen–Dice coefficient.

Native μCT data					Contrast-enhanced μCT data
Organ	Dice	Std dev	Minimum	Maximum	Dice	Std dev	Minimum	Maximum
The coefficients for all organs of the native and the contrast-enhanced datasets are depicted to assess the quality of two organ segmentations by manual delineation. Furthermore, the calculated standard deviation (Std dev) and the minimum and maximum values of the Sørensen–Dice coefficient are shown. The main difference between the native and the contrast-enhanced μCT data is the increase in Sørensen–Dice coefficient showing the higher similarity in segmentation of the spleen (increase from 0.373 to 0.820, as highlighted with *). The data are also graphically depicted in Fig. 3.
Bone	0.793	0.005	0.782	0.803	0.923	0.050	0.789	0.999
Bladder	0.854	0.039	0.694	0.900	0.822	0.057	0.710	0.915
Heart	0.879	0.021	0.812	0.910	0.851	0.047	0.687	0.913
Intestine	0.722	0.029	0.654	0.768	0.686	0.149	0.308	0.886
Kidneys	0.819	0.040	0.689	0.878	0.809	0.051	0.662	0.888
Liver	0.808	0.044	0.677	0.883	0.818	0.068	0.555	0.903
Lung	0.859	0.021	0.784	0.888	0.907	0.048	0.797	0.980
Spleen	*0.373	0.137	0.115	0.642	*0.820	0.046	0.710	0.888
Muscle	0.528	0.179	0	0.839	0.369	0.162	0.031	0.618
Stomach	0.736	0.138	0.348	0.947	0.682	0.070	0.466	0.809
Tumor	-	0.562	0.187	0.087	0.810