Automatic Segmentation of Anatomical Structures from CT Scans of Thorax for RTP

Table 3

Comparison of the RMS symmetric surface distance (mm) for the 10 CT scans from the LIDC.

OARs	Method
	Our method	de Nunzio et al. [7]	Yim and Hong [10]	Wang et al. [11]	Banik et al. [27]
Left lung	0.61 ± 0.22	0.79 ± 0.23	—	—	—
Right lung	0.63 ± 0.38	0.82 ± 0.51	—	—	—
Lungs (together)	0.67 ± 0.18	—	0.71 ± 0.22	0.89 ± 0.37	—
Trachea/main bronchi	0.66 ± 0.35	0.69 ± 0.20	0.81 ± 0.24	1.13 ± 0.41	—
Spinal canal	0.60 ± 0.43	—	—	—	0.73 ± 0.38