. Author manuscript; available in PMC: 2021 May 10.

Published in final edited form as: Med Image Anal. 2019 Feb 14;53:156–164. doi: 10.1016/j.media.2019.02.007

Table 4.

Performance of different agents using fixed-scale (FS) and multi-scale (MS) search strategies for the detection of anterior and posterior commissure landmarks in brain MR images. Distance errors are in mm. Bold text shows the highest achieved localization accuracy for each landmark.

Method	Anterior Commissure (AC)		Posterior Commissure (PC)
	FS	MS	FS	MS
DQN	3.04 ± 1.70	2.46 ± 1.44	2.03 ± 0.97	2.05 ± 1.14
DDQN	2.62 ± 1.24	2.61 ± 1.64	3.31 ± 1.2	1.86 ± 1.07
Duel DQN	3.04 ± 1.28	2.4 ± 1.42	3.6 ± 1.46	2.15 ± 1.24
Duel DDQN	2.97 ± 1.23	2.01 ± 1.29	2.04 ± 1.04	2.27 ± 1.22