医学影像学研究的特征及发展变化方向:分析2001至2010年发表在《中华放射学杂志》的原创性文章

目的 通过文献计量学方法分析2001至2010年发表在《中华放射学杂志》的原创性文章,从而发现影像学研究的特征及发展方向.方法 应用文献计量学方法分析评价发表在《中华放射学杂志》的2378篇原创性文章,评价每篇文章的摘要及全文的下述指标:影像学的亚专科,影像技术的类型,研究的类型、方法、统计学方法及有无基金资助,文章的作者数目,第一作者所从事的专业、单位的级别、所在的省会,同时动态分析上述指标在过去10年的变化趋势.结果 科学研究最多的亚专科是中枢神经系统(403篇,16.9％),第2和第3的分别是血管介入(369篇,15.5％),腹部(331篇,13.9％).834篇(35.1％)原创性的科学研究文章中使用了MRI,678篇(28.5％)使用了CT.2034篇(85.5％)是临床实验研究,1838篇(77.3％)为回顾性研究.819篇(34.4％)文章的样本量为20～50例之间;1309篇(55％)文章使用了统计学方法;2337篇(98.3％)为阳性研究结果.1744(篇73.3％)文章没有基金的支持.1529篇(64.3％)文章的作者数目为4～7名,第一作者所从事的专业为医学影像学的有2283篇(96.0％),2233篇(97.6％)文章第一作者单位为三级甲等医院.发表文章最多的三个地方分别为北京(663篇,27.9％)、广州(349篇,14.7％)、上海(281篇,11.8％).10年内的时间趋势中,显著性上升的为乳腺亚专科,MR技术,基础性研究的数量,＞50的样本量,使用统计学方法的文章,基金支持的文章,＞7名作者和江苏、福建和新疆地方发表文章的数目;显著性下降的为超声成像技术和介入治疗技术,无统计学方法的文章数目,＜4名作者和山西省发表的文章数目.结论 通过分析2001至2010年发表在《中华放射学杂志》上原创性文章的科学研究特征及发展变化方向,可以为医学影像学的科研人员及编辑提供更多的有用信息.     

放射学研究论文中的名誉作者:发表次数和相关因素的评价

目的量化在放射学杂志上名誉作者影响的频率,以及确定增加其流行的特殊因素。材料与方法本研究免于伦理委员会的审查。我们给近3年在《放射学》和《欧洲放射学》发表过原创研究的第一作者发了一份电子调查问卷。问     

类风湿关节炎肺间质病变:寻常型间质性肺炎的放射学研究

正目的探讨CT甄别类风湿关节炎肺间质病变(RA-ILD)中寻常型间质性肺炎(UIP)病理组织学特征的准确性。材料与方法本研究获得机构审查委员会批准,所有病     

肾透明细胞癌的放射基因学研究:CT影像特征和基因突变的相关性

正目的探讨肾透明细胞癌(RCC)的CT特征和VHL、PBRM1、SETD2、KDM5C和BAP1基因突变的相关性。材料与方法本项回顾性研究经机构审查委员会批准,符合HIPAA     

浸润型乳腺癌:预后及病人相关因素对动态MRI特征的影响

正目的回顾性探讨浸润型乳腺癌的预后及病人相关的临床指标对动态MRI特征的影响。材料与方法本研究为回顾性研究,经机构审查委员会批准并符合HIPAA,免除     

骨关节炎的膝关节软骨损伤:ACRIN-PA 4001多中心试验研究分析MRI生物标记物的可重复性

目的多中心试验对骨关节炎(OA)病人及无症状对照者进行研究,前瞻性确定膝关节软骨形态学及构成(T1ρ纵向弛豫时间,T2)的MRI生物标记物的可重复性。材料与方法本研究符合HIPAA要求,经参与方伦理审查委员会     

肿块型胆管细胞癌CT多期增强扫描中动脉期强化模式与临床病理特征的相关性研究

目的分析肝内肿块型胆管细胞癌(IMCC)的CT影像特征,尤其是动脉期强化幅度与模式,旨在探讨动脉期高强化与低强化的IMCC是否具有不同的临床病理特征。材料与方法该回顾性研究经首尔国立大学医院伦理审查委员会批     

发自左冠状窦的右冠状动脉起源变异:亚型及临床重要性分析

目的根据起源于左冠状窦的右冠状动脉(AORL)走行分为两种亚型,分析每种亚型的临床重要性。材料与方法本研究为回顾性研究,已通过机构伦理审查委员会审查,     

正常的前列腺中央带和前列腺癌侵犯的中央带:临床及MR成像意义

目的描述前列腺中央带在MRT2加权和扩散加权成像(DWI)上的解剖学特征,评价MRI在检出前列腺癌中央带受侵中的诊断表现。材料与方法本研究为回顾性研究,符合HIPAA法案,经机构审查委员会批准,免除病人知情同     

辐射暴露:通过对核医学报告自动数据挖掘进行质量控制和器官剂量监测的方法来加强病人安全性

摘要目的开发和验证一个开放源代码信息工具包,它可以从现有的核医学报告档案中创建一个放射辐射数据储存库,阐明这些数据在质量保证和病人个性辐射剂量纵向监测方面的潜在应用价值。材料与方法这项研究已被伦理审查委员会批准并被HIPAA认可。(由于是回顾性研究的原因)未签署知情同意书。开发了一个开放源代码信息工具包,它可以从核医学报告中自动提取有关放射性药物种类及给药活度的相关信息。     

Technology and archives in radiology research: a sampling analysis of articles published in the AJR and Radiology. American Journal of Roentgenology.

OBJECTIVE: Our aim was to determine the use of advanced technology and archiving and the contribution of countries other than United States in the articles published in the American Journal of Roentgenology (AJR) and Radiology. We analyzed the association of these features with the type of research, the main technical features of the modalities used, and the countries of origin. MATERIALS AND METHODS: We determined the proportion of articles published in 18 randomly selected issues of the AJR and Radiology that required advanced imaging techniques and relied on the analysis of archived data. "Advanced technology" was defined as imaging techniques that serve a purpose other than simple anatomic imaging or that are not widely available because of the high cost of the technology, such as functional imaging and computer programming designed for an individual study or simulation studies. We analyzed the association of these features with the country of origin, the topic, and the methodology used. RESULTS: Sixteen percent of the studies required advanced technology. MR imaging, CT, and sonography were the most frequently used modalities (31%, 27%, and 15% of studies, respectively). Archiving was used in 37% of the studies, and 67% of the original articles were prospective. The articles most commonly originated in North America (67%), Europe (20%), and Asia (12%). CONCLUSION: Only a small percentage of published research studies required advanced technology and approximately one third of the studies used archiving. These results may suggest that other criteria, such as the design of the study, its relevance for daily clinical use, and the originality of the paper, have a major impact on the acceptance of papers in clinically oriented radiology journals.     

Characteristics and Trends of Radiology Research: A Survey of Original Articles Published in AJR and Radiology between 2001 and 2010

Purpose: To determine the characteristics and trends of the original articles published in two major American radiology journals, AJR American Journal of Roentgenology (AJR) and Radiology, between 2001 and 2010. Materials and Methods: This was a retrospective bibliometric analysis that did not involve human subjects and was exempt from institutional review board approval. All 6542 original articles published in AJR and Radiology between 2001 and 2010 were evaluated. The following information was abstracted from each article: radiologic subspecialty, radiologic technique used, type of research, sample size, study design, statistical analysis, study outcome, declared funding, number of authors, affiliation of the first author, and country of the first author. In addition, all the variables examined were presented along with the trend over time. Results: The most common subspecialty of study was abdominal (1219 of 6542, 18.6%), followed by vascular/interventional (804 of 6542, 12.3%). A total of 3744 (57.2%) original articles used magnetic resonance (MR) imaging or computed tomography (CT), 5495 (84.1%) were clinical research articles, 3060 (46.8%) had sample size of more than 50, 4087 (62.5%) were retrospective, 4714 (72.1%) performed statistical analysis, 6225 (95.2%) showed positive study outcome, 4784 (73.1%) were not funded, 3942 (60.3%) had four to seven authors, and 5731 (87.6%) were written by the primary author who was from a department of radiology or radiology-related specialties. The United States published 45.5% (2975 of 6542) of the articles, followed by Japan (n = 525, 8.0%), Germany (n = 485, 7.4%), and South Korea (n = 455, 7.0%). In the time trend analysis, the following variables showed a significantly positive trend: cardiac subspecialty, CT and MR imaging as the radiologic techniques, type of research as other (nonbasic, nonclinical), sample size of more than 50, four to seven as the number of authors, medicine-related department of the first author, and South Korea and Italy as countries of the first author. On the other hand, pediatric subspecialty, combined (basic and clinical) type of research, and number of authors fewer than four showed a significantly negative trend. Conclusion: The bibliometric analysis of the AJR and Radiology journals with articles published between 2001 and 2010 revealed characteristics and trends of the current radiology research that may provide useful information to researchers and editorial staff in radiology. ? RSNA, 2012.     

Research articles published in clinical radiology journals: trend of contribution from different countries

RATIONALE AND OBJECTIVES: To determine different countries' trend of contribution to clinical radiology journals and its relationship with impact factor. MATERIALS AND METHODS: All the journals, which publish articles on clinical radiology, were selected from the category of Radiology and Nuclear Medicine group of journals, and articles published in these journals between 1991 and 2000 were searched for the authors' affiliation using the Medline database. Then, share of research output of the top-ranking 20 countries was determined along with the trend over time. Also, the relationship of different countries' contribution with the impact factor of journals was examined by cross-sectional time-series linear model. RESULTS: Of total articles (38,359), the United States' share for the selected journals in clinical radiology was 43.2% (16,582 articles) and ranked top in the world, followed by the United Kingdom (9.9%) and Japan (8.0%). The recent increase in the share was statistically significant for Japan, France, Germany, Italy, South Korea, Turkey, Spain, Switzerland, Austria, and China. On the other hand, the United States, United Kingdom, and Canada showed a significant negative trend. Among the top-ranking 10 countries, the US contribution was significantly higher to journals with high-impact factors, whereas the opposite was true for France. CONCLUSION: The United States, United Kingdom, and Canada showed a negative trend over the last decade in terms of proportion of contribution of articles to the clinical radiology journals. However, only the United States published more articles in high-impact factor journals.     

《中华放射学杂志》介入放射学临床试验论文的评价

目的 按Cochrane手册的标准对《中华放射学杂志》1980－1999年共20卷158期的临床试验论文进行统计、分析和评价。方法 《中华放射学杂志》1980－1999年共20卷158期，由中国Cochrane中心培训的临床医学专业人员对杂志进行逐篇查阅，根据Cochrane中心手检指南检索出相关的随机对照试验（RCT）和临床对照试验（CCT）论文。结果 RCT、CCT论文分布情况逐年增加，RCT和CCT占临床试验论文的百分率也逐渐增加，RCT和CCT均从80年代初期的0％，分别上升到90年代后期的2．17％、7．97％。结论 介入放射学临床治疗试验论文的研究水平在不断提高。但是，RCT和CCT在临床治疗试验论文中占的比例还不高，RCT的设计、实施和分析还不规范，使结果的可信性方面存在缺陷。     

我国2012年度影像研究的特点及与国外影像研究的比较

目的 探讨我国影像学研究的特点,了解我国影像学研究的现状及其与国外影像学研究特点的异同.方法 根据《2012年度中国科技核心期刊目录》,用档案学的方法回顾性统计我国15种影像学综合类核心期刊2011年10月至2012年10月发表的论著,并根据研究所使用的影像手段、研究部位、研究类型、样本量和研究设计进行论文分类.同时统计Radiology及European Radiology(ER)同期发表的论著,按以上项目进行分类,并采用x2检验比较国内外论文构成的异同.结果 国内影像学论著共2784篇,使用最多的影像手段是CT(1093篇,39.3％),其次是MRI(824篇,29.6％)和介入(402篇,14.4％);Radiology和ER中论著共560篇,使用最多的影像手段是MRI(265篇,47.3％),其次为CT(170篇,30.4％)和联合采用多种方法(63篇,11.3％).国内期刊中临床研究所占比例最大(2572篇,92.4％),基础研究类论著115篇(4.1％),基础与临床结合的论著为9篇(0.3％),其他类型论著88篇(3.2％);研究的样本量≤10、11～50和≥51者,分别为374篇(13.4％)、1448篇(52.0％)及847篇(30.4％);前瞻性研究论文339篇(12.2％),回顾性研究论文1211篇(43.5％).国外期刊临床研究型达515篇(92.0％),基础研究类论著39篇(7.0％),基础与临床结合的论著为3篇(0.5％),其他类型论著3篇(0.5％);研究的样本量≤10、11 ～50和≥51者,分别为30篇(5.4％)、225篇(40.2％)及252篇(45.0％);前瞻性研究论文230篇(41.1％),回顾性研究论文202篇(36.1％).国外论文中使用MRI较国内高(x2=666.690,P ＜0.01).国内外临床型研究均在90％以上,二者差异无统计学意义(x2 =0.116,P＞0.05).国外论著的样本量≥51者较国内多(x2 =44.895,P ＜0.01),国外研究设计以前瞻性为多(x2=275.667,P＜0.01),而国内以回顾性研究为主.结论 国内影像学研究需要更多的前瞻性、大样本量研究.     

Current issues of interventional radiology in Canada: a national survey by the Canadian Interventional Radiology Association.

OBJECTIVE: To determine current issues facing the field of interventional radiology (IR) in Canada. METHODS: An anonymous online survey was emailed to all members of the Canadian Interventional Radiology Association. The survey was open for 1 month. RESULTS: A total of 83 survey responses were received (of an estimated possible 233). Responses regarding demographics, aspects of practice, research, and IR trainee education were collected. CONCLUSIONS: Several issues were identified as pertinent to Canadian interventional radiologists, including a current and future drought of interventional radiologists, a lack of women in the profession, inadequate protected research time for those in academic practice, a lack of protected clinical time, concern regarding turf issues with other specialties, division between interventional and diagnostic radiology, and the ideal profile of the future interventional radiologist. The field of interventional radiology (IR) continues to develop, expand, and mature at a rapid pace. As the field is still relatively young, several issues are bound to arise. It is important therefore to stay abreast of the current trends and opinions of practitioners within the field.     

The abstract format of original articles: differences between imaging and non-imaging journals

Objectives  

To compare the abstract structure in the 70 highest-rank imaging journals with that of the two highest-rank journals in each of 35 non-imaging biomedical categories, according to 2008 impact factors.     

研究性论文的摘要格式:影像学杂志与非影像学杂志的区别

目的根据2008年影响因子的高低,选取影响因子高的前70本影像学杂志,再分别从非影像学杂志的35个生物医学类别中分别选取影响因子高的前2本杂志,将选取的