Clinical applicability of gastroscopy with narrow-band imaging for the diagnosis of Helicobacter pylori gastritis, precancerous gastric lesion, and neoplasia

Table 1 Endoscopic criteria using narrow-band imaging for diagnosis of gastric intestinal metaplasia

Ref.	Year	Endoscopy mode	Diagnostic criteria	Concordance with histopathology
				Sensitivity	Specificity	Accuracy
Pimentel-Nunes et al[37]	2012	NBI	Regular tubulovillous/ridge glandular pattern	90%	81%	84%
Saka et al[36]	2015	M-NBI	Tubular/granular mucosa with LBC or WOS	N/A	N/A	69.1-72.7%1
Pimentel-Nunes et al[39]	2016	NBI	Regular tubulovillous/ridge glandular pattern	87%	97%	94%
Buxbaum et al[41]	2017	NBI	Tubulovillous/ridge pattern and/or LBC	N/A	N/A	53-65%2
Esposito et al[40]	2019	NBI	Regular tubulovillous/ridge glandular pattern	89.4%	94.6%	N/A
An et al[34]	2012	M-NBI	MTB and/or LBC	72.1-100%3	66.0-96.0%3	81.7-84.9%3
Savarino et al[33]	2013	M-NBI	LBC	80%	96%	93%
Kanemitsu et al[35]	2017	M-NBI	WOS and/or LBC	87.5%	93.8%	90.0%

¹Concordance rate between the M-NBI and histopathology was 69.1% for the antrum and 72.7% for the corpus.

²Diagnostic yield per-patient and per-site was 65% and 53%, respectively.

³MTB and LBC had sensitivities, specificities, and accuracy of 100/72.1%, 66.0/96.0%, and 81.7/84.9%, respectively. NBI: Narrow-band imaging; M-NBI: Magnifying narrow-band imaging; LBC: Light blue crest; WOS: White opaque substance; MTB: Marginal turbid band; N/A: Not applicable.