TABLE 2

Results of CT and PET/CT in Detection of Abdominal Cavity Metastasis

Modality	TP	FN	TN	FP	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Accuracy (%)
CT	6	16	16	2	27.3	88.7	75	50	55
PET/CT	19	3	15	3	86.4	83.3	86.4	83.3	85
P					0.000^*	0.63	0.46	0.02^*	0.003^*

↵* Statistically significant at 0.05 level.
TP = true-positive; FN = false-negative; TN = true-negative; FP = false-positive; NPV = negative predictive value; PPV = positive predictive value.
Lesions of all sizes in 40 patients were included. Statistical analysis used χ² test.