Baek Sora, Yoon Dae Young, Min Kyung Joon, Lim Kyoung Ja, Seo Young Lan, Yun Eun Joo
Department of Nuclear Medicine, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 445 Gil-dong Kangdong-Gu, Seoul, 134-701, Korea.
Ann Nucl Med. 2014 Jun;28(5):455-62. doi: 10.1007/s12149-014-0836-7. Epub 2014 Mar 12.
We performed a bibliometric analysis of scientific publications focused on positron emission tomography (PET) over a 10-year period.
The MEDLINE and ISI Web of Knowledge databases were searched for English language original articles focused on PET in SCI/SCIE-indexed journals in 2002, 2007, and 2012. We selected the documents with titles that included "PET" or "positron emission." The following information was obtained from each article: journal (year of publication, title, subject category, and impact factor), subspecialty, imaging modality used, tracer, species, sample size, number of authors, affiliation of the first author, declared funding, and country of origin.
The yearly publication on PET increased from 547 (2002) to 986 (2007), and 1838 (2012). A total of 1753 (52.0%) articles were published in journals in the "Radiology, Nuclear Medicine & Medical Imaging" category, 1512 (44.9%) were in the subspecialty of oncology, 3245 (96.3%) used PET or PET/CT, 1698 (50.4%) used 2-fluoro-2-deoxy-D-glucose (FDG) as the radiotracer, 2378 (70.5%) were human studies, 1294 (38.4%) had a sample size of <20, 1674 (49.7%) had >7 authors, 779 (23.1%) were written by a first author from a department of nuclear medicine, and 1337 (39.7%) were supported by government funding. The United States published 948 studies (28.1%) followed by Japan (345, 10.2%) and Germany (335, 9.9%). In the time trend analysis oncology subspecialty, PET/MR as the imaging modality, FDG as the tracer, sample size>50, number of authors>7, radiology department affiliation of the first author, and government funding exhibited significantly positive trends.
The number of publication concerning PET has increased rapidly over the last decade. This bibliometric analysis revealed characteristics and trends of current PET research that provides useful information to researchers.
我们对10年间聚焦于正电子发射断层扫描（PET）的科学出版物进行了文献计量分析。
在MEDLINE和ISI Web of Knowledge数据库中检索2002年、2007年和2012年发表在SCI/SCIE索引期刊上的聚焦于PET的英文原创文章。我们选择标题中包含“PET”或“正电子发射”的文献。从每篇文章中获取以下信息：期刊（出版年份、标题、学科类别和影响因子）、亚专业、使用的成像模态、示踪剂、物种、样本量、作者数量、第一作者的所属机构、申报的资金以及原产国。
PET的年度出版物数量从2002年的547篇增加到2007年的986篇，以及2012年的1838篇。总共1753篇（52.0%）文章发表在“放射学、核医学与医学影像学”类别的期刊上，1512篇（44.9%）属于肿瘤学亚专业，3245篇（96.3%）使用PET或PET/CT，1698篇（50.4%）使用2-氟-2-脱氧-D-葡萄糖（FDG）作为放射性示踪剂，2378篇（70.5%）是人体研究，1294篇（38.4%）样本量<20，1674篇（49.7%）作者数量>7，779篇（23.1%）由核医学科的第一作者撰写，1337篇（39.7%）有政府资金支持。美国发表了948项研究（28.1%），其次是日本（345项，10.2%）和德国（335项，9.9%）。在肿瘤学亚专业的时间趋势分析中，PET/MR作为成像模态、FDG作为示踪剂、样本量>50、作者数量>7、第一作者所属放射科以及政府资金呈现出显著的正向趋势。
在过去十年中，关于PET的出版物数量迅速增加。这项文献计量分析揭示了当前PET研究的特征和趋势，为研究人员提供了有用信息。
