Accuracy for Optical Diagnosis of Small Colorectal Polyps in Nonacademic Settings

ASGE Technology Committee systematic review and meta-analysis assessing the ASGE PIVI thresholds for adopting real-time endoscopic assessment of the histology of diminutive colorectal polyps

“…[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] These studies collectively evaluated 4013 in situ small or diminutive colorectal polyps in real-time by using NBI and compared it with criterion standard histopathology. The median prevalence of adenomas among these polyps was 48.5% (range 18%-88%).…”

In vivo Optical Diagnosis of Polyp Histology: Can We Omit Pathological Examination of Diminutive Polyps?

“…Reliable information about reproducibility of this results is lacking. Moreover, the overall accuracy in prediction of histology es markedly influenced by expertise in NBI interpretation, as has been shown in a study performed in a non academic setting in which sensitivity for high-confidence prediction was 77% and specificity 78% [73]. Experts have been shown to perform better than non-experts and with a higher interobserver agreement [74].…”

“…Paggy et al [72] found similar results both in the whole group of < 10 mm polyps and in diminutive polyps. Other authors have not showed as good results [56,73]. The most recent report using the NICE classification found an accuracy of 89%, sensitivity of 98% and a NPV of 95%.…”

Management of Diminutive Colon Polyps Based on Endoluminal Imaging

“…The evidence from nonexperts (30)(31)(32)(33)(34)(35)(36)(37)(38)(39) provides some cautionary notes (Table 2). Several studies have shown that training modules can improve accuracy among non-expert endoscopists (31)(32)(33)(34)(35), and many nonexperts achieve PIVI thresholds when training is evaluated ex-vivo (Table 2).…”