{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T10:08:13Z","timestamp":1789207693090,"version":"build-2803163510"},"reference-count":19,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T00:00:00Z","timestamp":1789171200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T00:00:00Z","timestamp":1789171200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["DEN Open"],"published-print":{"date-parts":[[2027,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Japan NBI Expert Team (JNET) Type 1 classification is used for optical characterization of colorectal lesions with magnifying NBI, but reported Type 1\u2010related findings may differ between readers when assessing serrated lesions. This small\u2010scale post hoc reader\u2010based study explored reported feature\u2010classification patterns associated with JNET Type 1 selection among serrated colorectal lesions and compared them between expert and non\u2010expert endoscopists.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We analyzed de\u2010identified data from two web\u2010based image\u2010interpretation studies using the same colorectal lesion image dataset. Thirteen histologically confirmed serrated lesions (11 sessile serrated lesions [SSLs] and two hyperplastic polyps [HPs]) assessed by 27 expert and 49 non\u2010expert Japanese endoscopists were included. Simplified JNET responses were dichotomized as Type 1 versus non\u2010Type 1. Classification and regression tree analysis was used to visualize associations between this outcome and predefined features, including Type 1\u2010supportive findings and an anti\u2010Type 1 composite variable. Variability was assessed using entropy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In the expert and non\u2010expert core models, the root splits were anti\u2010Type 1 findings and regular dark or white spots, respectively. These root splits were stable in leave\u2010one\u2010reader\u2010out analyses, but the non\u2010expert root split changed to anti\u2010Type 1 findings after excluding unassessable responses. Median entropy was lower among experts than non\u2010experts (0.229\u00a0vs. 0.954).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This exploratory post hoc decision tree analysis suggested relatively stable expert\u2010associated feature\u2010classification patterns, whereas non\u2010expert patterns were influenced by the treatment of unassessable responses. These findings reflect exploratory associations in Type 1 assignment, not cognitive decision sequences, SSL\u2013HP differentiation, or a validated diagnostic algorithm.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/deo2.70428","type":"journal-article","created":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T09:43:04Z","timestamp":1789206184000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Feature\u2010Based Patterns Associated With Japan NBI Expert Team Type 1 Classification of Serrated Colorectal Lesions: A Post Hoc Decision Tree Analysis"],"prefix":"10.1002","volume":"7","author":[{"given":"Taku","family":"Sakamoto","sequence":"first","affiliation":[{"name":"Department of Gastroenterology Institute of Medicine University of Tsukuba  Tsukuba Japan"},{"name":"Endoscopy Division National Cancer Center Hospital  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroyuki","family":"Takamaru","sequence":"additional","affiliation":[{"name":"Endoscopy Division National Cancer Center Hospital  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daizen","family":"Hirata","sequence":"additional","affiliation":[{"name":"Gastrointestinal Center Sano Hospital  Kobe Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iwatate","family":"Mineo","sequence":"additional","affiliation":[{"name":"Gastrointestinal Center Sano Hospital  Kobe Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasushi","family":"Sano","sequence":"additional","affiliation":[{"name":"Gastrointestinal Center Sano Hospital  Kobe Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideki","family":"Ishikawa","sequence":"additional","affiliation":[{"name":"Department of Molecular\u2010Targeting Prevention Kyoto Prefectural University of Medicine  Kyoto Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saito","family":"Yutaka","sequence":"additional","affiliation":[{"name":"Endoscopy Division National Cancer Center Hospital  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"the Japan NBI Expert Team 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