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

Table 7

Comparison of the RMS symmetric surface distance (mm) for the 10 CT scans of the 10 cancer patients.

OARs	Method
	Our method	de Nunzio et al. [7]	Yim and Hong [10]	Wang et al. [11]	Banik et al. [27]
Left lung	1.33 ± 0.48	1.77 ± 0.63	—	—	—
Right lung	1.48 ± 0.75	1.51 ± 0.89	—	—	—
Lungs (together)	1.30 ± 0.93	—	1.92 ± 1.13	2.16 ± 1.24	—
Trachea/main bronchi	1.52 ± 0.86	1.23 ± 0.55	1.38 ± 0.77	1.56 ± 0.97	—
Spinal canal	1.13 ± 0.78	—	—	—	1.02 ± 0.62