Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Southern Medical University, Guangzhou, China.
J Med Internet Res. 2021 Jul 5;23(7):e25700. doi: 10.2196/25700.
BACKGROUND: Modern neurosurgery is a relatively young discipline characterized by finesse and complexity. In recent years, neurosurgery in China has made continuous developments, with long-term progress and outstanding discoveries in many aspects of the field. OBJECTIVE: This scientometric investigation aimed to comprehensively provide insight into the development trends of neurosurgery in China, to demonstrate how the field has evolved. METHODS: PubMed database was searched to retrieve relevant papers published between 1988 and 2018 from neurosurgery institutions in China. The database of the National Natural Science Foundation of China was also retrieved for funding information. Information (eg, year of publication, journal, institute of origin) and keywords were collected from each paper after removing duplicates and filtering unintentional words. Co-word analysis was performed on the papers' keywords, and a time distribution matrix of coexisting keywords in a given paper (ie, termed co-words) was established. Co-words were clustered according to their growth rate within years and visually presented with a mountain plot and a heatmap. Trends and potential subspecialties were identified, and each topic, represented either by a co-word from publications or funding from the National Natural Science Foundation of China during the period from 2011 to 2018, was collected and analyzed. RESULTS: Within 15,972 publications on neurosurgery from institutions in China, diagnostic image was found to coexist the most with other keywords. Cluster 0, represented by diagnostic image with retrospective study, contained emerging topics with great developmental potential and demonstrated high growth rates in recent years. This finding suggests that the topics represented in Cluster 0 may represent future areas of important neurosurgical research. We also found that the developmental trend of China's neurosurgical research is highly correlated with National Natural Science Foundation of China funding acquisition. CONCLUSIONS: Co-word analysis and visualization results provided insight into the emerging research topics that are of vital importance, which can be used as a reference by neurosurgeons and researchers for future investigations. In this study, our analysis strategy based on co-word biclustering was able to clearly demonstrate current academic subject development; therefore, co-word biclustering is a reliable bibliometric analysis strategy.
背景:现代神经外科学是一门相对年轻的学科,其特点是精细和复杂。近年来,中国神经外科学不断发展,在该领域的许多方面取得了长期的进步和杰出的发现。
目的:本科学计量学研究旨在全面了解中国神经外科学的发展趋势,展示该领域的发展演变。
方法:在 PubMed 数据库中检索了 1988 年至 2018 年期间中国神经外科机构发表的相关论文。还检索了国家自然科学基金委员会的数据库,以获取资助信息。从每篇论文中收集信息(例如,发表年份、期刊、原始机构)和关键词,去除重复项并过滤掉无意的单词后。对论文的关键词进行共词分析,并为给定论文中的共现关键词建立时间分布矩阵(即共词)。根据共词在年内的增长率对共词进行聚类,并通过山脉图和热图进行直观呈现。确定趋势和潜在的亚专业,并收集和分析该时期(2011 年至 2018 年)出版物或国家自然科学基金委员会资助的每个主题的共词。
结果:在来自中国机构的 15972 篇神经外科学论文中,发现诊断图像与其他关键词共存最多。以回顾性研究为代表的聚类 0 包含具有巨大发展潜力的新兴主题,近年来呈高速增长。这一发现表明,聚类 0 中代表的主题可能代表未来重要的神经外科研究领域。我们还发现,中国神经外科学研究的发展趋势与国家自然科学基金委员会的资助获取高度相关。
结论:共词分析和可视化结果深入了解了至关重要的新兴研究主题,这些主题可以为神经外科医生和研究人员提供未来研究的参考。在本研究中,我们基于共词双聚类的分析策略能够清晰地展示当前学术主题的发展;因此,共词双聚类是一种可靠的文献计量学分析策略。
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