Rosenkrantz Andrew B, Pinnamaneni Niveditha, Babb James S, Doshi Ankur M
Department of Radiology, Center for Biomedical Imaging, NYU School of Medicine, NYU Langone Medical Center, 660 First Avenue, 3rd Floor, New York, NY 10016.
Department of Radiology, Center for Biomedical Imaging, NYU School of Medicine, NYU Langone Medical Center, 660 First Avenue, 3rd Floor, New York, NY 10016.
Acad Radiol. 2016 May;23(5):628-33. doi: 10.1016/j.acra.2016.01.002. Epub 2016 Feb 18.
This study aimed to assess the most common publication types in radiology journals, as well as temporal trends and association with citation frequency.
PubMed was searched to extract all published articles having the following "Publication Type" indices: "validation studies," "meta-analysis," "clinical trial," "comparative study," "evaluation study," "guideline," "multicenter study," "randomized study," "review," "editorial," "case report," and "technical report." The percentage of articles within each category published within clinical radiology journals was computed. Normalized percentages for each category were also computed on an annual basis. Citation counts within a 2-year window following publication were obtained using Web of Science. Overall trends were assessed.
Publication types with the highest fraction in radiology journals were technical reports, evaluation studies, and case reports (4.8% to 5.8%). Publication types with the lowest fraction in radiology journals were randomized trials, multicenter studies, and meta-analyses (0.8% to 1.5%). Case reports showed a significant decrease since 1999, with accelerating decline since 2007 (P = 0.002). Publication types with highest citation counts were meta-analyses, guidelines, and multicenter studies (8.1 ± 10.7 to 12.9 ± 5.1). Publication types with lowest citation counts were case reports, editorials, and technical reports (1.4 ± 2.4 to 2.9 ± 4.3). The representation in radiology journals and citation frequency of the publication types showed weak inverse correlation (r = -0.372).
Radiology journals have historically had relatively greater representation of less frequently cited publication types. Various strategies, including methodological training, multidisciplinary collaboration, national support networks, as well as encouragement of higher level of evidence by funding agencies and radiology journals themselves, are warranted to improve the impact of radiological research.
本研究旨在评估放射学期刊中最常见的出版物类型，以及时间趋势和与引用频率的关联。
检索PubMed以提取所有具有以下“出版物类型”索引的已发表文章：“验证研究”“荟萃分析”“临床试验”“比较研究”“评估研究”“指南”“多中心研究”“随机研究”“综述”“社论”“病例报告”和“技术报告”。计算临床放射学期刊中各类别文章的百分比。还按年度计算每个类别的标准化百分比。使用科学网获取发表后2年内的引用次数。评估总体趋势。
放射学期刊中占比最高的出版物类型是技术报告、评估研究和病例报告（4.8%至5.8%）。放射学期刊中占比最低的出版物类型是随机试验、多中心研究和荟萃分析（0.8%至1.5%）。病例报告自1999年以来显著减少，自2007年以来下降加速（P = 0.002）。引用次数最高的出版物类型是荟萃分析、指南和多中心研究（8.1±10.7至12.9±5.1）。引用次数最低的出版物类型是病例报告、社论和技术报告（1.4±2.4至2.9±4.3）。出版物类型在放射学期刊中的占比与引用频率呈弱负相关（r = -0.372）。
放射学期刊历来对引用频率较低的出版物类型的报道相对较多。需要采取各种策略，包括方法学培训、多学科合作、国家支持网络，以及资助机构和放射学期刊自身鼓励采用更高水平的证据，以提高放射学研究的影响力。
