TABLE III. Measured Performance Indices Averaged Across the 12 Subjects in Study I.

	w/o DAC		with DAC		Improv.
Task efficiency	Mean	SD	Mean	SD	% *p-val.
Complet. Time (sec)	333.8	94.78	143.9	11.15	57 *.0001
Aver. Trav. Dist. (mm)	543.5	191.0	114.9	22.60	79 *.0000
No. of Polyps Missed	0.33	0.65	0	0	100*.104
Targeting error	Mean	SD	Mean	SD	% *p-val.
Aver. Dist. Err. (mm)	2.63	0.67	1.68	0.40	36 *.0004
Aver. Ang. Err. (°)	7.64	1.76	4.76	0.81	38 *.0001
No. of Times Missed	1.87	0.90	1.20	0.50	36 *.0314
Deviation	Mean	SD	Mean	SD	% *p-val.
No. of Times	63.08	27.39	34.00	7.05	46 *.0025
Max. Depth (mm)	33.66	6.22	10.72	4.98	68 *.0000
Aver. Depth (mm)	7.30	2.30	2.21	0.81	70 *.0000
Aver. Time (sec)	3.99	2.46	0.43	0.12	89 *.0004
Max. Time (sec)	54.08	35.13	3.07	2.55	94 *.0004
Total Length (mm)	4268	1585	372.9	144.6	91 *.0000