基于文献计量的全球胶囊内镜研究特征与趋势分析

Characteristic and trend of global capsule endoscopy research based on bibliometrics

目的通过对胶囊内镜领域国际国内发表论文的特征与关键词进行定量分析,阐明胶囊内镜研究发展趋势,为相关研究者提供参考。方法采用文献计量学方法,分别使用Stork文献鸟和CiteSpace可视化工具对PubMed英文数据库和CNKI中文数据库中关于“胶囊内镜”的所有发表于2002年至2022年的文献进行检索并分析。结果在此时间段PubMed数据库中共检出6011篇胶囊内镜相关文献,国内外英文论文发表数量和被引频次均呈现上升趋势,全球和国内英文论文的增长率分别为5%和15%。文献发表国家主要集中于美国、日本、中国、意大利和德国。全球研究领域集中于磁控胶囊内镜、结肠胶囊内镜、炎症性肠病、小肠胶囊内镜、胶囊内镜图像、不明原因消化道出血等方向。CNKI数据库中共检索出2027篇文献,研究机构前3名依次为海军军医大学长海医院消化内科、南方医科大学南方医院消化内科、上海交通大学电子信息与电气工程学院,近期最新突现词为人工智能、深度学习、指南。结论目前胶囊内镜领域研究活跃度逐渐增加,我国在国际胶囊内镜领域具有一定学术影响力。

Objective To quantitatively analyze the primary research characteristics and keywords of international and domestic papers in the field of capsule endoscopy with bibliometric methods,and to illustrate the progression of capsule endoscopy research and offer insights for researchers in this domain.Methods The Stork and visualized software CiteSpace were used to search and analyze the literature on"capsule endoscopy"in the English database of PubMed and the Chinese database of CNKI from 2002 to 2022.Results A total of 6011 English articles were identified in the PubMed database during the specified period.Both the number of publications and their citation frequencies displayed an upward trend on a global and domestic scale.The growth rates of global and domestic English publications were 5%and 15%,respectively,with major contributions coming from the United States,Japan,China,Italy and Germany.Key areas of global research interest included magnetic capsule endoscopy,colon capsule endoscopy,inflammatory bowel disease,small bowel capsule endoscopy,capsule endoscopy images,and obscure gastrointestinal bleeding,etc.A total of 2027 articles were retrieved in the CNKI database,with top three research institutions including Department of Gastroenterology,Changhai Hospital,Naval Medical University;Department of Gastroenterology,Nanfang Hospital,Southern Medical University;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University.Emerging research keywords encompassed artificial intelligence,deep learning,and guidelines.Conclusion The study reveals a gradual increase in global research activities related to capsule endoscopy,with China demonstrating significant international academic influence in this field.