《中华核医学与分子影像杂志》1998至2013年高被引论文分析

目的分析《中华核医学与分子影像杂志》1998至2013年发表的高被引论文特点。方法通过万方数据库查询《中华核医学与分子影像杂志》1998至2013年发表论文的各篇被引次数（统计截至2013年12月31日），采用共时法中的百分比法确定高被引论文篇数。分析高被引论文的年份、作者、地域、栏目、主题词和基金项目分布情况。结果共纳入高被引论文140篇，占全部发表论文的5．43％（140／2580），总被引次数占全部发表论文的37．49％（2533／6757），均被引次数18．09次／篇。高被引论文发表年份2000至2005年所占比例最高，为77．86％（109／140）。作者数3～6之间的文章篇数所占比例最高，为65．00％（91／140）；发表高被引论文3篇及以上者7名。北京、广东、上海为《中华核医学与分子影像杂志》高被引论文主要产出地区。肿瘤核医学、内分泌系统核医学及中枢神经系统核医学栏目高被引论文篇数较多，分别占总篇数的16．43％、10．00％和9．29％。结论《中华核医学与分子影像杂志》高被引论文具有发表时间、研究方向、作者分布相对集中的特点，为杂志今后选题策划组稿等提供了一定的参考。

Analysis of frequently cited papers in Chinese Journal of Nuclear Medicine and Molecular Imaging during year 1998-2013

Object-ive To investigate ihe characteristics of frequently cited papers in Chinese Journal of Nuclear Medicine and Molecular Imaging （CJNMMI） during year 1998-2013. Methods Based on Wan Fang database, the citation number of each paper published in CJNMMI during year 1998-2013 was recorded. Percentage method was used to determine the number of frequently cited paper. The published year, regional distribution, number of authors, columns, key words and funding of the frequently cited pa- per were analyzed. Results There was 5.43% （ 140/2 580） of the papers published in CJNMMI from year 1998-2013 were considered frequently cited. These 140 frequently cited papers accounted for 37.49% （2 533/ 6 757） of the total number of citations, with an average citation number of 18.09. A total of 77.86% （ 109/ 140） of these frequently cited papers were published during year 2000-2005, and 65.00% （91/140）of them had 3-6 authors. Seven authors published 3 or more of these frequently cited papers. Most papers were from Beijing, Guangdong and Shanghai. The top 3 columns with frequently cited papers were nuclear oncolo- gy, endocrinology and neurology （ 16.43%, 10.00%, 9.29%）. Conclusion Analysis of the frequently cited papers in CJNMMI with regard to characteristics, such as published year, research field and district distribution, may provide useful reference for topic selection in the future.