Systematic review of diagnostic tools for peritoneal metastasis in gastric cancer-staging laparoscopy and its alternatives

Table 6 Statistical results of computed tomography and positron emission tomography

Ref.	Sensitivity		Specificity		Positive predictive value		Negative predictive value		Accuracy		True positive/true negative		False positive/false negative
	CT	PET	CT	PET	CT	PET	CT	PET	CT	PET	CT	PET	CT	PET
Lim et al[11], 2006	96.5%	35.3%	91.6%	98.9%	-	-	-	-	89.3%	89.3%	13/87	6/94	8/4	1/11
Sim et al[33], 2009	86.6%	46.6%	91.9%	94.2%	82.3%	80%	-	-	-	-	-	-	-	-
Turlakow et al[34], 2003	43%	57%	-	-	100%	93%	-	-	-	-	-	-	-	-
Perlaza et al[36], 2018	64%	68%	93%	100%	-	-	-	-	-	-	-	-	-	-
Kim et al[37], 2017	96%	50%	100%	100%	100%	100%	99%	89%	99%	90%	-	-	-	-
Chen et al[38], 2005	80%	30%	91%	98%	-	-	-	-	89%	88%	-	-	-	-
Kim et al[39], 2011	63.6%	18.2%	97.7%	100%	-	-	-	-	95%	93.5%	-	-	-	-

CT: Computed tomography; PET: Positron emission tomography.