Comparison Between Linked Color Imaging and Blue Laser Imaging for Improving the Visibility of Flat Colorectal Polyps: A Multicenter Pilot Study

Yoshida, Naohisa; Hisabe, Takashi; Ikematsu, Hiroaki; Ishiguro, Hiroshi; Terasawa, Masaki; Inaba, Atsushi; Sato, Daiki; Cho, Hourin; Ego, Mai; Tanaka, Yusaku; Yasuda, Ritsu; Inoue, Ken; Murakami, Takaaki; Inada, Yutaka; Itoh, Yoshito; Saito, Yutaka

doi:10.1007/s10620-019-05930-x

Cited by 31 publications

(35 citation statements)

References 24 publications

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“…Linked color imaging (LCI; Fujifilm Co., Tokyo, Japan) is a kind of narrow-banding image for detecting gastrointestinal neoplastic lesions. LCI makes lesions more reddish and makes white area more whitish [ 11 , 12 , 13 ]. In our multiple cases in Table 1 , small NETs were emphasized, appearing whiter with LCI in comparison with WLI (Fig.…”

Section: Discussionmentioning

confidence: 99%

A Case of Fifteen Simultaneous Rectal Neuroendocrine Tumors and Endocrine Cell Micronests Resected by Both Endoscopic Treatments and Surgery

Hashimoto

Yoshida

Inoue

et al. 2022

Case Rep Gastroenterol

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Case Report:A 65-year-old man without any symptoms received colonoscopy for cancer screening and underwent cold snare polypectomy (CSP) for a 3-mm rectal lesion at a local clinic. A histopathological examination revealed neuroendocrine tumor (NET) G1 with a positive margin. The patient was referred to our hospital for further treatment. Then, the post-CSP scar was removed by endoscopic submucosal dissection (ESD), with a sufficient endoscopically normal margin. Histopathology showed 4 NETs and endocrine cell micronests (ECMs) distant from the post-CSP scar, with a positive lateral margin. We considered that the possibility of other NETs was high. Additional surgery was performed. After a histopathological examination, 11 NETs and ECMs were found in the whole rectum, without lymph node metastasis. The patient had no recurrence at 24 months after surgery. In the past 10 years, we have experienced 4 cases (including the present case) of multiple rectal NETs among 56 cases of rectal NETs of ≤10 mm (7.1%). None of our 4 cases showed any recurrence (follow-up period: 12–32 months).Conclusions:We herein report a case involving a patient with 15 rectal NETs and ECMs. We reviewed our experience with multiple rectal NETs, and the rate of multiple rectal NETs was 7.1%. Endoscopists should consider that multiple lesions may be present in cases of rectal NET and be aware that some cannot be detected endoscopically.

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Section: Discussionmentioning

confidence: 99%

A Case of Fifteen Simultaneous Rectal Neuroendocrine Tumors and Endocrine Cell Micronests Resected by Both Endoscopic Treatments and Surgery

Hashimoto

Yoshida

Inoue

et al. 2022

Case Rep Gastroenterol

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“…BLI was associated with a higher number of adenomas per patient than WL and in a tandem colonoscopy study BLI followed by WL, had a lower polyp miss rate of 1.6% vs. 10.0% miss rate in the WLE-BLI group (42). More recent studies have focused on LCI for detection as it appears to provide superior polyp "visibility" over BLI (45). A number of RCTs have demonstrated an increased ADR for LCI over WL, 37% vs. 28% [95% (2.39-19.41%)] (43).…”

Section: Bli and Lcimentioning

confidence: 99%

Enhancing polyp detection: technological advances in colonoscopy imaging

Lee¹,

Tutticci²

2021

Transl Gastroenterol Hepatol

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The detection and removal of polyps at colonoscopy is core to the current colorectal cancer (CRC) prevention strategy. However, colonoscopy is flawed with a well described miss rate and variability in detection rates associated with incomplete protection from CRC. Consequently, there is significant interest in techniques and technologies which increase polyp detection with the aim to remedy colonoscopy's ills.Technologic advances in colonoscope imaging are numerous and include; increased definition of imaging, widening field of view, virtual technologies to supplant conventional chromocolonoscopy (CC) and now computer assisted detection. However, despite nearly two decades of technologic advances, data on gains in detection from individual technologies have been modest at best and heterogenous and conflicted as a rule.This state of detection technology science is exacerbated by use of relatively blunt metrics of improvement without consensus, the myopic search for gains over single generations of technology improvement and an unhealthy focus on adenomatous lesions. Yet there remains cause for optimism as detection gains from new technology, while small, may still improve CRC prevention. The technologies are also readily available in current generation colonoscopes and have roles beyond simply detection such as lesion characterization, further improving their worth. Coupled with the imminent expansion of computer assisted detection the detection future from colonoscope imaging advances looks bright. This review aims to cover the major imaging advances and evidence for improvement in polyp detection.

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“…1,2 Colonoscopy (CS) and endoscopic resection of colorectal adenomatous polyps reduce the incidence of CRC and CRCrelated mortality; 3,4 however, the participation rate for population-based CRC screening in Japan remains low. 5 Presently, the use of image-enhanced endoscopy (IEE), including chromoscopy, narrow-band imaging (NBI), [6][7][8] and blue-laser imaging (BLI), 9,10 is commonly accepted in clinical practice. Therefore, several early CRCs, including flat-type precancerous lesions, have been detected in populations that underwent total CS (TCS).…”

Section: Introductionmentioning

confidence: 99%

Current status of diagnostic and therapeutic colonoscopy in Japan: The Japan Endoscopic Database Project

Saito

Kodashima

Matsuda

et al. 2021

Digestive Endoscopy

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The Japan Endoscopy Database Project was initiated to develop the world's largest endoscopy data repository. This study describes the first phase of the colonoscopy project in Japan.Methods: Data were aggregated offline by integrating information from the endoscopy database software from January 2015 through March 2017. The study population included all patients who underwent colonoscopy at eight centers.Results: A total of 31,395 patients who underwent 38,497 colonoscopy procedures were registered. The majority of procedures were performed for screening (n = 14,156), followed by fecal immunochemical test positivity (n = 3960), abdominal symptoms (n = 3864), post-colorectal surgery surveillance (n = 3431), post-endoscopic treatment surveillance (n = 3757), thorough pre-treatment examination (n = 2822), and therapeutic purposes (n = 6507). In the screening group, advanced cancers, early cancers, and adenomas were diagnosed endoscopically in 2.1%, 1.3%, and 28.7% of cases, respectively, while in the fecal immunochemical test-positive group, they were diagnosed in 2.5%, 1.9%, and 41.6% of cases, respectively. The incidence of complications was 0.177% and 0.152% in the screening and fecal immunochemical test-positive groups, respectively. The therapeutic procedures included 1446 cold forceps polypectomy procedures, 4770 cold snare polypectomy procedures, 368 hot biopsies, 2998 hot snare polypectomy procedures, 9775 endoscopic or piecemeal endoscopic mucosal resections, and 1660 endoscopic submucosal dissections. A total of 173 procedure-related complications (0.82%) occurred in 21,017 therapeutic procedures performed in 15,744 patients. Conclusions:The first phase of the Japan Endoscopy Database Project established the proportions of the diagnostic and therapeutic colonoscopy procedures, and complication rates in real-world settings.

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Comparison Between Linked Color Imaging and Blue Laser Imaging for Improving the Visibility of Flat Colorectal Polyps: A Multicenter Pilot Study

Cited by 31 publications

References 24 publications

A Case of Fifteen Simultaneous Rectal Neuroendocrine Tumors and Endocrine Cell Micronests Resected by Both Endoscopic Treatments and Surgery

A Case of Fifteen Simultaneous Rectal Neuroendocrine Tumors and Endocrine Cell Micronests Resected by Both Endoscopic Treatments and Surgery

Enhancing polyp detection: technological advances in colonoscopy imaging

Current status of diagnostic and therapeutic colonoscopy in Japan: The Japan Endoscopic Database Project

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