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Miyaguchi K, Tsuzuki Y, Hirooka N, Matsumoto H, Ohgo H, Nakamoto H, Imaeda H. Linked-color imaging with or without artificial intelligence for adenoma detection: a randomized trial. Endoscopy 2024; 56:376-383. [PMID: 38191000 PMCID: PMC11038826 DOI: 10.1055/a-2239-8145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 01/03/2024] [Indexed: 01/10/2024]
Abstract
BACKGROUND Adenoma detection rate (ADR) is an important indicator of colonoscopy quality and colorectal cancer incidence. Both linked-color imaging (LCI) with artificial intelligence (LCA) and LCI alone increase adenoma detection during colonoscopy, although it remains unclear whether one modality is superior. This study compared ADR between LCA and LCI alone, including according to endoscopists' experience (experts and trainees) and polyp size. METHODS Patients undergoing colonoscopy for positive fecal immunochemical tests, follow-up of colon polyps, and abdominal symptoms at a single institution were randomly assigned to the LCA or LCI group. ADR, adenoma per colonoscopy (APC), cecal intubation time, withdrawal time, number of adenomas per location, and adenoma size were compared. RESULTS The LCA (n=400) and LCI (n=400) groups showed comparable cecal intubation and withdrawal times. The LCA group showed a significantly higher ADR (58.8% vs. 43.5%; P<0.001) and mean (95%CI) APC (1.31 [1.15 to 1.47] vs. 0.94 [0.80 to 1.07]; P<0.001), particularly in the ascending colon (0.30 [0.24 to 0.36] vs. 0.20 [0.15 to 0.25]; P=0.02). Total number of nonpolypoid-type adenomas was also significantly higher in the LCA group (0.15 [0.09 to 0.20] vs. 0.08 [0.05 to 0.10]; P=0.02). Small polyps (≤5, 6-9mm) were detected significantly more frequently in the LCA group (0.75 [0.64 to 0.86] vs. 0.48 [0.40 to 0.57], P<0.001 and 0.34 [0.26 to 0.41] vs. 0.24 [0.18 to 0.29], P=0.04, respectively). In both groups, ADR was not significantly different between experts and trainees. CONCLUSIONS LCA was significantly superior to LCI alone in terms of ADR.
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Affiliation(s)
- Kazuya Miyaguchi
- Department of Gastroenterology, Saitama Medical University, Saitama, Japan
| | - Yoshikazu Tsuzuki
- Department of Gastroenterology, Saitama Medical University, Saitama, Japan
| | - Nobutaka Hirooka
- Department of General Internal Medicine, Saitama Medical University, Saitama, Japan
| | - Hisashi Matsumoto
- Department of General Internal Medicine, Saitama Medical University, Saitama, Japan
| | - Hideki Ohgo
- Department of Gastroenterology, Saitama Medical University, Saitama, Japan
| | - Hidetomo Nakamoto
- Department of General Internal Medicine, Saitama Medical University, Saitama, Japan
| | - Hiroyuki Imaeda
- Department of Gastroenterology, Saitama Medical University, Saitama, Japan
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Jiao YF, Cheng ZY, Gao Y, Yu CT, Jiang HS, Wang TL, Deng Y, Lin H, Wang TJ, Wang W, Wan R, Li ZS, Xin L, Wang LW. Development, quality, and influencing factors of colonoscopy in China: results from the national census in 2013 and 2020. Front Oncol 2023; 13:1276520. [PMID: 37810978 PMCID: PMC10556871 DOI: 10.3389/fonc.2023.1276520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Abstract
Background and Aim With the increasing burden of colorectal cancer (CRC), the practice of colonoscopy is gaining attention worldwide. However, it exhibits distinct trends between developing and developed countries. This study aims to explore its development and identify influencing factors in China. Methods The Chinese Digestive Endoscopy Censuses were conducted twice in mainland China under the supervision of health authorities. Information regarding the practice of colonoscopy was collected through a structured online questionnaire. The authenticity of the data was evaluated through logical tests, and a random selection of endoscopic reports underwent manual validation by Quality Control Centers. Potential factors associated with colonoscopy were analyzed using real-world information. Results From 2012 to 2019, the number of hospitals that performed colonoscopy increased from 3,210 to 6,325 (1.97-fold), and the volume increased from 5.83 to 12.92 million (2.21-fold). The utilization rate rose from 436.0 to 914.8 per 100,000 inhabitants (2.10-fold). However, there was an exacerbation of regional inequality in the adequacy of colonoscopy. Regions with higher incidence of CRC, higher gross domestic product per capita, more average numbers of endoscopists and tertiary hospitals tended to provide more accessible colonoscopy (P<0.001). Nationwide, the cecal intubation rate improved from 83.9% to 94.4% and the unadjusted adenoma detection rate (ADR) improved from 16.3% to 18.1%. Overall, hospital grading, educational background of endoscopists, economic income, and colonoscopy volume were observed as the significantly positive factors affecting ADR (P<0.05), but not the incidence of CRC or the number of endoscopists. Conclusions Tremendous progress in colonoscopy has been made in China, but some issues needed timely reflection. Our findings provide timely evidence for better colonoscopy strategies and measures, such as quality control and medical education of endoscopists.
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Affiliation(s)
- Yun-Fei Jiao
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Zhi-Yuan Cheng
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ye Gao
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Chu-Ting Yu
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Hui-Shan Jiang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Ting-Lu Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Ying Deng
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Han Lin
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Tian-Jiao Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Wei Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Rong Wan
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhao-Shen Li
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Lei Xin
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
| | - Luo-Wei Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
- National Digestive Endoscopy Improvement System, Shanghai, China
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