Evaluation of the impact of linked color imaging for improving the visibility of colonic polyp.

Evaluation of the impact of linked color imaging for improving the visibility of colonic polyp. Oncol Lett. 2019 Nov;18(5):5555-5560 Authors: Tanaka Y, Inoue T, Kakimoto K, Nakazawa K, Tawa H, Hirata Y, Okada T, Nouda S, Kawakami K, Takeuchi T, Egashira Y, Higuchi K Abstract Linked color imaging (LCI) is a novel endoscopic system used to increase color contrast. As LCI does not decrease luminal brightness, it may improve the detection of colonic neoplasms. However, the extent to which LCI improves the visibility of colonic polyps has not yet been determined. Between December 2016 and May 2017, patients who received total colonoscopy were consecutively recruited into this retrospective, single-center study. For each polyp identified, images obtained from white light (WL) imaging, blue laser imaging (BLI), and LCI of the same lesion and its surrounding mucosa were evaluated. The color differences (ΔE) between each lesion and its surrounding mucosa in non-magnified images were computed quantitatively using the CIELAB color space, which defines color perception according to colorimetric values, and compared among WL, BLI, LCI, and chromoendoscopy. The ΔE between the vessel and non-vessel areas in magnified images was also assessed. Of the 64 patients who were incorporated into this study, non-magnified and magnified (×80) images from 113 and 95 polyps, respectively, were assessed. The ΔE was intensified by LCI and chromoendoscopy compa...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

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Background: Juvenile polyps (JPs) are the most common gastrointestinal polyps diagnosed in children. There is paucity of evidence differentiating polyp burden groups and the presence and significance of neoplastic changes. Methods: A retrospective chart review of patients, ages birth through 18 years with nonsyndromic JPs was performed from 2003 to 2017. Abstracted data included basic demographics, age, clinical presentation, colonoscopy findings, and pathology report. Slides of polyps with neoplasia were reviewed by a pathologist. Results: A total of 213 subjects underwent 326 procedures and 435 polypectomies. Sub...
Source: Journal of Pediatric Gastroenterology and Nutrition - Category: Gastroenterology Tags: Original Articles: Gastroenterology Source Type: research
ConclusionAmong patients under age 50, advanced adenomas and ≥ 10-mm serrated polyps were predominantly in the distal colorectum. Advanced adenomas tended to be found in patients aged 45–49. Our results might explain the rising trend of distal colorectal cancer and emphasize the necessity for colonoscopy screening among these populations.
Source: International Journal of Colorectal Disease - Category: Gastroenterology Source Type: research
Endoscopy DOI: 10.1055/a-1031-5672 Background Interval colorectal cancers may be associated with a low serrated polyp detection rate (SDR) and advanced adenoma detection rate (AADR). We aimed to determine the SDR and AADR for endoscopists in a United States multicenter cohort. Methods We included average-risk screening colonoscopies from five medical centers in the United States. Endoscopists with data on at least 100 average-risk screening colonoscopies were included. We calculated median SDR and AADR for endoscopists with adequate adenoma detection rates (ADRs)> 25 %. We analyzed the relationship b...
Source: Endoscopy - Category: Gastroenterology Authors: Tags: Original article Source Type: research
Endoscopy DOI: 10.1055/a-1031-7657 1 ESGE suggests that high definition endoscopy, and dye or virtual chromoendoscopy, as well as add-on devices, can be used in average risk patients to increase the endoscopist’s adenoma detection rate. However, their routine use must be balanced against costs and practical considerations.Weak recommendation, high quality evidence. 2 ESGE recommends the routine use of high definition systems in individuals with Lynch syndrome.Strong recommendation, high quality evidence. 3 ESGE recommends the routine use, with targeted biopsies, of dye-based pancolonic chromoendoscopy ...
Source: Endoscopy - Category: Gastroenterology Authors: Tags: Guideline Source Type: research
ConclusionThe performance of colonoscopy in young patients with benign anal diseases and hematochezia resulted in a high rate of detection of neoplastic lesions. The method might be considered as a valid strategy of investigation in this frequent clinical situation.
Source: International Journal of Colorectal Disease - Category: Gastroenterology Source Type: research
ConclusionThe CAD algorithm showed comparable performance to offline review by expert endoscopists and improved performance when compared to junior endoscopists and may be useful for assisting clinical decision making in real time.
Source: International Journal of Colorectal Disease - Category: Gastroenterology Source Type: research
Spoiler: Medically graphic image of colon A 17-year-old male is referred for colorectal cancer screening following his father’s diagnosis of metastatic colorectal cancer at the age of 47. He is asymptomatic and otherwise well. Colonoscopy reveals hundreds of adenomatous polyps throughout the colon, and he eventually undergoes a total proctocolectomy with ileal pouch anal anastomosis. Which of the following extracolonic... What malignancy is this patient at risk for?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Educational Quizzes and Case Studies Forum Source Type: forums
At the UEG (United European Gastroenterology) Week event in Barcelona, Spain, the first automatic polyp assistance system was unveiled by Medtronic. The GI Genius intelligent endoscopy system monitors the live video feed from a colonoscope, outli...
Source: Medgadget - Category: Medical Devices Authors: Tags: GI Oncology Surgery Source Type: blogs
In this study, a single-center randomized controlled trial was conducted to analyze the key quality indicators (the rate to arrive cecum, time to arrive cecum, total operation time, detection rate of polyps, detection rate of adenoma, pain score, operation satisfaction, and the pressure on abdomen) of patients who underwent water-injection colonoscopy under non-sedation from January 2018 to June 2018 in the center. Patients were randomly assigned to different assistant groups based on the actual working period of 6 months (0∼6 months inexperienced assistant group and assistant group with more than 6 months of experienc...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Trial/Experimental Study Source Type: research
ConclusionsA UMT strategy might be a cost-effective strategy when used in programmatic CRC screening programs.
Source: International Journal of Colorectal Disease - Category: Gastroenterology Source Type: research
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