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

Table 4

Comparison of the maximum 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	1.76 ± 0.66	1.83 ± 0.99	—	—	—
Right lung	1.93 ± 1.03	2.02 ± 0.87	—	—	—
Lungs (together)	2.08 ± 1.15	—	2.23 ± 1.36	2.76 ± 1.90	—
Trachea/main bronchi	2.55 ± 1.44	2.88 ± 0.97	3.03 ± 1.65	3.51 ± 2.24	—
Spinal canal	2.67 ± 1.89	—	—	—	3.78 ± 2.00