Differentiation of Pituitary Adenoma from Rathke Cleft Cyst: Combining MR Image Features with Texture Features

Table 3

Differences of texture features between pituitary adenoma and Rathke cleft cyst on the contrast-enhanced image and T2WI based on the Mann–Whitney U test.

Texture feature, mean (range)	Contrast-enhanced image			T2WI
	Pituitary adenoma	Rathke cleft cyst		Pituitary adenoma	Rathke cleft cyst
Histo
Energy	0.05 (0.02∼0.14)	0.07 (0.03∼0.13)	<0.001	0.05 (0.03∼0.13)	0.05 (0.02∼0.14)	0.263
Entropy	1.42 (1.00∼1.75)	1.33 (1.07∼1.59)	0.002	1.40 (1.11∼1.62)	1.45 (1.07∼1.68)	0.078
Kurtosis	4.93 (1.70∼41.27)	8.82 (2.91∼21.31)	<0.001	6.07 (1.59∼28.98)	5.40 (1.51∼20.23)	0.599
Skewness	0.25 (−1.19∼4.67)	1.25 (−1.72∼3.23)	<0.001	0.27 (−2.87∼3.34)	−0.43 (−3.37∼1.56)	0.004
GLCM
Correlation	0.58 (0.27∼0.85)	0.44 (0.09∼0.82)	<0.001	0.52 (0.11∼0.89)	0.45 (−0.34∼0.86)	0.173
Contrast	41.01 (6.64∼161.70)	43.19 (4.54∼154.60)	0.600	49.76 (11.81∼146.29)	84.69 (9.40∼717.59)	0.028
Dissimilarity	4.31 (1.66∼9.10)	3.98 (1.39∼8.74)	0.310	4.60 (2.25∼8.63)	5.64 (1.852∼22.209)	0.108
Energy	0.01 (0.00∼0.03)	0.01 (0.00∼0.04)	<0.001	0.01 (0.00∼0.03)	0.01 (0.00∼0.03)	0.566
Entropy	2.60 (1.76∼3.08)	2.34 (1.87∼2.85)	<0.001	2.60 (1.91∼3.00)	2.52 (1.85∼2.98)	0.579
Homogeneity	0.30 (0.21∼0.54)	0.40 (0.25∼0.57)	0.001	0.30 (0.22∼0.51)	0.34 (0.16∼0.53)	0.984

T2WI, T2-weighted image; Histo, histogram-based matrix; GLCM, grey-level co-occurrence matrix.