Table 3. Sensitivity and specificity for metastatic lymph node detection in seven published computed tomography studies.

Study	Year	No. of patients	Detector rows × collimation (mm)	Intravenous contrast (dose)	Imaging plane	Section thickness (mm), gap (mm)	Criteria for positive LN	Interpreter(s)	Reference standard	LN number	SN (%)	SP (%)
Nazim et al. (12)	2010	98	– × 0.5	–	–	–, 0.5	LN >1 cm	One investigator	HP report	39	77	82
Türkvatan et al. (21)	2008	37	16 × –	Iodinated contrast (320 mgI/mL)	Axial	5, –	LN >1 cm	Two radiologists	HP report	57	75	75
Kang et al. (22)	2004	82	–	–	–	–, –	LN >1 cm in short axis	–	HP report	–	92.6	98.1
Spahn et al. (16)	2001	60	–	Yes (–)	–	10, –	–	One radiologist	HP report	–	100	–
Constantinides et al. (23)	1991	47	–	–	–	–	–	–	HP report	27	60	85
Studer et al. (19)	1990	163	–	–	Axial	–, –	LN >1 cm	–	HP report	–	78.2	82.1
Johnson et al. (20)	1987	97	–	Yes (–)	–	10, 10	LN >1 cm	–	HP report	–	83	88

LN, lymph node; SN, sensitivity; SP, specificity; HP, histopathology.