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

Table 2

Differences of qualitative MR image features between pituitary adenoma and Rathke cleft cyst in the training group.

Qualitative MR image features	Pituitary adenoma, N (%) (n = 68)	Rathke cleft cyst, N (%) (n = 40)	value (<0.01)
Flow voids
Presence	3 (4)	2 (5)	0.866
Absence	65 (96)	38 (95)	(Fisher’s exact tests)
Signal intensity on the contrast-enhanced images
Hypointense or isointense	3 (4)	30 (75)	<0.001
Hyperintense	65 (96)	10 (25)	(chi-square tests)
Heterogeneity on the contrast-enhanced images
Homogenous	34 (50)	25 (62.5)	0.208
Heterogeneous	34 (50)	15 (37.5)	(chi-square tests)
Signal intensity on T2WI
Hypointense or isointense	35 (64)	14 (40)	0.028
Hyperintense	20 (36)	21 (60)	(chi-square tests)
Heterogeneity on T2WI
Homogenous	27 (49)	20 (57)	0.456
Heterogeneous	28 (51)	15 (43)	(chi-square tests)

MR, magnetic resonance; T2WI, T2-weighted image. Correction adjusted level of significance .