Table 1.

Timing results showing the mean times to outline de novo or edit ABAS™-created specific structures

Structure	Time to outline de novo (min)	Time to edit ABAS outlines (min)	Ratio (de novo/edited)	p-value
Body	0.28 (0.06)	0.13 (0.35)	0.44	0.2726
Left femoral head	5.60 (0.78)	2.13 (0.80)	0.38	0.0002
Right femoral head	5.70 (1.27)	2.15 (0.75)	0.38	0.0008
Bladder	3.80 (2.26)	1.94 (0.90)	0.51	0.0312
Rectum	4.20 (0.78)	3.59 (1.24)	0.85	0.3640
Prostate	4.46 (0.66)	2.84 (1.59)	0.64	0.0234
Seminal vesicles	2.38 (0.71)	2.94 (0.66)	1.24	0.2317

Values are mean (standard deviation). p-values are calculated using paired Student's t-test.

ABAS system v. 2.0 (Elekta, Crawley, UK).