Table 2.

Comparison of F-18 fluorocholine positron emission tomography-computed tomography and diffusion-weighted magnetic resonance imaging with histopathology in patients for initial staging and recurrent disease at primary site

F-18 FCH PET/CT and DW-MRI
Test	Initial Staging (n=17)		Recurrence (n=33)
	PET/CT	DW-MRI	PET/CT	DW-MRI
Positive	17	17	26	26
Negative	0	0	07	7
True positive	17	17	26	25
False positive	0	0	0	1
True negative	0	0	05	4
False negative	0	0	02	3
Sensitivity (%)	100	100	92.85	89.28
Specificity (%)	NA	NA	100	80

FCH: Fluorocholine, DW-MRI: Diffusion-weighted magnetic resonance imaging, PET/CT: Positron emission tomography-computed tomography, NA: Not available