Comparison of MRI and CT in the Evaluation of Unilateral Maxillary Sinus Opacification

Table 3

Potentially neoplastic (N) and infective/inflammatory (I) diagnoses on CT and MRI for Observer1, Observer2, and consensus compared to final clinical diagnoses.

	Observer1				Observer2				Consensus
	CT		MRI		CT		MRI		CT		MRI
Final diagnosis	N	I	N	I	N	I	N	I	r-N	r-I	r-N	r-I
c-N (n = 20)	18	2	19	1	20	0	20	0	20	0	20	0
c-I (n = 29)	20	9	6	23	22	7	5	24	25	4	6	23
Chi-square statistic ( value) for CT versus MRI	7.5 ()				13.6 ()				18.5 ()