Enhanced CT combined with texture analysis for differential diagnosis of pleomorphic adenoma and adenolymphoma

BMC Medical Imaging

Table 1 Comparison of tumor morphology and CT values for each phase

Parameters		PA	AL	F/X ²	Pairwise
Boundary	Clear	14	22	0.090	0.648
Boundary	Unclear	6	7	0.090	0.648
Shape	Regular	8	11	0.021	0.884
Shape	Irregular	12	18	0.021	0.884
homogeneity	Homogeneous	17	20	1.646	0.200
homogeneity	Heterogeneous	3	9	1.646	0.200
Calcification	Yes	3	4	0.014	0.609
Calcification	No	17	25	0.014	0.609
Mean CT value of FSP		26.85 ± 12.41	41.58 ± 11.45	0.102	0.751
Mean CT value of AP		42.50 ± 18.89	81.38 ± 31.89	5.106	0.029*
Mean CT value of VP		50.25 ± 17.25	67.24 ± 21.23	0.217	0.644
Net reinforcement value of AP		15.65 ± 13.00	39.79 ± 25.84	13.894	0.001*
Net reinforcement value of VP		23.40 ± 14.13	25.66 ± 14.62	0.049	0.825

*, Statistically significant difference. P < 0.05 for pairwise comparisons
AL, adenolymphoma; PA, pleomorphic adenoma; FSP, flat sweep phase; AP, arterial phases; VP, venous phases

ISSN: 1471-2342