Table 1.

Preference comparison of image quality between the proposed VR system and QLAB. A ${\chi }^2$ test shows that participants significantly prefer the VR system overall, and also specifically in terms of depth and resolution.

	QLAB	Same	VR	${\mathit{\chi }}^2$	p-Value
Colourmap	3	2	8	4.769	0.092
Resolution	2	0	11	6.231	0.013
Depth	1	0	12	9.308	0.002
Overall	1	1	11	15.385	0.000