Robust Initialization of Active Shape Models for Lung Segmentation in CT Scans: A Feature-Based Atlas Approach

Table 3

Comparison of median and average of final segmentation accuracy as well as the values of a paired Wilcoxon rank test between each method and . For each method, the number of cases ^#with Dice values below 0.9, 0.8, and 0.7 is provided.

Average	0.963 ± 0.056	0.944 ± 0.134	0.964 ± 0.058	0.963 ± 0.056	0.974 ± 0.017
Median	0.9784	0.9784	0.9778	0.9786	0.9792
value	6.47−05	1.18−07	6.92−04	6.01−04	—
Average (mm)	1.350 ± 2.456	2.271 ± 6.546	1.398 ± 3.094	1.335 ± 2.493	0.948 ± 1.537
Median (mm)	0.7342	0.7441	0.7958	0.7144	0.7108
value	7.64−04	5.85−07	1.24−03	4.03−02	—
#()	23	31	14	23	3
#()	14	23	10	11	0
#()	4	15	7	4	0