A novel extra-wide-angle-view colonoscope: a simulated pilot study using anatomic colorectal models

被引：33

作者：

Uraoka, Toshio ^{[1
,2
]}

Tanaka, Shinji ^{[3
]}

Matsumoto, Takayuki ^{[4
]}

Matsuda, Takahisa

Oka, Shiro ^{[3
]}

Moriyama, Tomohiko ^{[4
]}

Higashi, Reiji ^{[6
]}

Saito, Yutaka ^{[5
]}

机构：

[1] Keio Univ, Sch Med, Ctr Canc, Div Res & Dev Minimally Invas Treatment, Tokyo, Japan

[2] Okayama Univ Hosp, Dept Endoscopy, Okayama, Japan

[3] Hiroshima Univ Hosp, Dept Endoscopy, Hiroshima, Japan

[4] Kyushu Univ, Dept Med & Clin Sci, Grad Sch Med Sci, Fukuoka 812, Japan

[5] Natl Canc Ctr, Endoscopy Div, Tokyo, Japan

[6] Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Gastroenterol & Hepatol, Okayama 7008530, Japan

来源：

GASTROINTESTINAL ENDOSCOPY | 2013年 / 77卷 / 03期

关键词：

ADENOMA DETECTION RATES; TO-BACK COLONOSCOPIES; MISS RATES; POLYPS; IMPACT; COLON; RETROFLEXION; DEVICE; TRIAL; CAP;

D O I：

10.1016/j.gie.2012.08.037

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

Background: A major factor that may contribute to a higher adenoma miss rate during colonoscopy is undetected lesions located behind haustral folds, flexures, or rectal valves. Objective: To assess the efficacy of a prototype, novel, extra-wide-angle-view colonoscope that provides a simultaneous lateral-backward view that complements the forward view lens. Design: A simulated pilot study of two anatomic colorectal models, each prepared with 8 polyps positioned in obvious locations and 8 polyps placed behind folds. Thirty-two endoscopists with different levels of experience performed examinations on models in a random order by using the extra-wide-angle-view colonoscope and a standard colonoscope. Main Outcome Measurements: The detection rates of simulated polyps. Results: The mean detection rate for all simulated polyps with the extra-wide-angle-view colonoscope was significantly higher than that with the standard colonoscope (68% vs 51%; P < .0001). The detection rate for polyps behind folds was significantly higher in the extra-wide-angle-view colonoscope than in the standard colonoscope (61.7% vs 46.9%; P = .0009). Limitations: Not a clinical study. Conclusion: The novel, extra-wide-angle-view colonoscope may represent an advancement in colorectal polyp detection. The value of the colonoscope for clinical use awaits further study. (Gastrointest Endosc 2013;77:480-3.)

引用

页码：480 / 483

页数：4

共 13 条

[1] Impact of experience with a retrograde-viewing device on adenoma detection rates and withdrawal times during colonoscopy: the Third Eye Retroscope study group [J].