Table 5.

Ability of Qualitative, Quantitative, and Both Analyses for MRI in Differentiating Thymoma and Nonthymoma Groups.^a

Technique	Sensitivity, % (n)	P	Specificity, % (n)	P	Accuracy, % (n)	P
Qualitative
CT	93.9 (31/33)	1.00	65.0 (13/20)	.062	83.0 (44/53)	.031
MRI	97.0 (32/33)		90.0 (18/20)		94.3 (50/53)
Quantitative
CT	90.9 (30/33)	.25	70.0 (14/20)	.062	83.0 (44/53)	.008
MRI	100.0 (33/33)		95.0 (19/20)		98.1 (52/53)
Both
CT	93.9 (31/33)	.50	75.0 (15/20)	.125	86.8 (46/53)	.031
MRI	100.0 (33/33)		95.0 (19/20)		98.1 (52/53)

Abbreviations: CT, computed tomography; MRI, magnetic resonance imaging.

^a P value from McNemar test.