Role of (18F) 2-fluoro-2-deoxyglucose positron emission tomography in upper gastrointestinal malignancies

Table 2 Prospective studies comparing the accuracy of positron emission tomography with computed tomography and/or endo-ultrasonography in the detection of distant metastases

Ref.	Yr	Histology	n	Imaging	Sensitivity (%)	Specificity (%)
Flamen et al[8]	2000	SCC/AC	74	PET	71	90
				CT	41	83
				EUS	42	94
				EUS/CT	47	78
Lerut et al[115]	2000	SCC/AC	42	PET	77	90
				CT/EUS	46	69
Sihvo et al[18]	2004	SCC	81	PET	35	91
				CT	42	45
Heeren et al[25]	2004	SC/AC	74	PET	71	98
				CT	21	98
				CT/EUS	29	96
Lowe et al[19]	2005	SCC/AC	75	PET	81	91
				CT	81	82
				EUS	73	76

PET: Positron emission tomography; CT: Computed tomography; EUS: Endoscopic ultrasound; SCC: Squamous cell carcinoma; AC: Adenocarcinoma.