Table 4.

Mean scores of observers’ questionnaire

	3D	TM	p- value
Satisfaction, median [IQR]	18.96 [16.36–19.64]	10.24 [8.3–11.46]	0.000
Visibility	4.68 [3.91–5]	2.64 [2.34–3.34]	0.000
Image quality	4.68 [3.94–5]	2.64 [2.32–2.74]	0.000
Depth perception	4.6 [3.93–4.96]	2.15 [1.2–2.68]	0.000
Teaching	4.92 [4.73–5]	2.32 [1.2–2.64]	0.000

IQR interquartile range