Table 3.

Comparison of measurement methods between MRI and CT

	CT	MRI	Difference of medians	p value
Width in cm	2.33 (0.35-4.53)	2.26 (0.90-3.47)	0.07	0.71
Depth in cm	0.42 (0.80-1.39)	0.40 (0.06-1.17)	0.02	0.54
Bigliani classification in °	1.50 (1.00-2.00)	2.00 (1.00-3.00)	0.50	0.33
Best-fit circle width, %	15.02 (2.48-41.59)	13.38 (2.00-36.34)	1.64	0.66
AP distances, %	15.48 (1.44-42.01)	12.88 (1.43-36.34)	2.60	0.63
Surface area, %	14.01 (0.87-38.25)	11.72 (2.45-37.97)	2.29	0.68
Gerber X ratio	0.75 (0.13-1.47)	0.76 (0.27-1.13)	0.01	0.41

Data presented as the median (range); the results of each measurement were not normally distributed; the Wilcoxon signed-rank test was used to compare the interval scaled measurements; ordinal scaled variables were tested with the sign test.