An accurate interactive segmentation and volume calculation of orbital soft tissue for orbital reconstruction after enucleation

Table 1 The interobserver variability (Student’s paired sample t-test) and percentage differences of three different segmentation methods for MV calculation in orbital phantom data

	MV of OA (cm³, n = 6 or 12*)	MV of OB (cm³, n = 6 or 12*)	T value	P value	Total MV (cm³, n = 12 or 24*)	Percentage differences (%)
Manual delineation	3.8100 ± 0.0388	3.8009 ± 0.0059	0.557	0.600	3.8054 ± 0.0269	0.71
Mimics segmentation	3.7602 ± 0.1117	3.7689 ± 0.0646	0.166	0.871	3.7645 ± 0.0871	2.31
Graph cut method	3.7790 ± 0.0445	3.7766 ± 0.0443	0.134	0.895	3.7778 ± 0.0434	1.45

* n = 6 (n = 12 in total MV) for manual delineation and Mimics segmentation, n = 12 (n = 24 in total MV) for graph cut method, because every observer calculated MV once for 6 test data by manual and Mimics method, but two times by graph cut method

ISSN: 1471-2415