Scimago Journal & Country Rank

American Journal of Roentgenology

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
Radiology, Nuclear Medicine and Imaging
PublisherAmerican Roentgen Ray Society
Publication typeJournals
ISSN0361803X, 15463141
Scope Founded in 1907, the monthly American Journal of Roentgenology (AJR) is the world’s longest continuously published general radiology journal. AJR is recognized as among the specialty’s leading peer-reviewed journals and has a worldwide circulation of close to 25,000. The journal publishes clinically-oriented articles across all radiology subspecialties, seeking relevance to radiologists’ daily practice. The journal publishes hundreds of articles annually with a diverse range of formats, including original research, reviews, clinical perspectives, editorials, and other short reports. The journal engages its audience through a spectrum of social media and digital communication activities.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Medicine (miscellaneous)1999Q1
Medicine (miscellaneous)2000Q1
Medicine (miscellaneous)2001Q1
Medicine (miscellaneous)2002Q1
Medicine (miscellaneous)2003Q1
Medicine (miscellaneous)2004Q1
Medicine (miscellaneous)2005Q1
Medicine (miscellaneous)2006Q1
Medicine (miscellaneous)2007Q1
Medicine (miscellaneous)2008Q1
Medicine (miscellaneous)2009Q1
Medicine (miscellaneous)2010Q1
Medicine (miscellaneous)2011Q1
Medicine (miscellaneous)2012Q1
Medicine (miscellaneous)2013Q1
Medicine (miscellaneous)2014Q1
Medicine (miscellaneous)2015Q1
Medicine (miscellaneous)2016Q1
Medicine (miscellaneous)2017Q1
Medicine (miscellaneous)2018Q1
Medicine (miscellaneous)2019Q1
Radiology, Nuclear Medicine and Imaging1999Q1
Radiology, Nuclear Medicine and Imaging2000Q1
Radiology, Nuclear Medicine and Imaging2001Q1
Radiology, Nuclear Medicine and Imaging2002Q1
Radiology, Nuclear Medicine and Imaging2003Q1
Radiology, Nuclear Medicine and Imaging2004Q1
Radiology, Nuclear Medicine and Imaging2005Q1
Radiology, Nuclear Medicine and Imaging2006Q1
Radiology, Nuclear Medicine and Imaging2007Q1
Radiology, Nuclear Medicine and Imaging2008Q1
Radiology, Nuclear Medicine and Imaging2009Q1
Radiology, Nuclear Medicine and Imaging2010Q1
Radiology, Nuclear Medicine and Imaging2011Q1
Radiology, Nuclear Medicine and Imaging2012Q1
Radiology, Nuclear Medicine and Imaging2013Q1
Radiology, Nuclear Medicine and Imaging2014Q1
Radiology, Nuclear Medicine and Imaging2015Q1
Radiology, Nuclear Medicine and Imaging2016Q1
Radiology, Nuclear Medicine and Imaging2017Q1
Radiology, Nuclear Medicine and Imaging2018Q1
Radiology, Nuclear Medicine and Imaging2019Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19992.290
Cites / Doc. (4 years)20002.473
Cites / Doc. (4 years)20012.531
Cites / Doc. (4 years)20022.738
Cites / Doc. (4 years)20032.737
Cites / Doc. (4 years)20042.960
Cites / Doc. (4 years)20053.026
Cites / Doc. (4 years)20063.141
Cites / Doc. (4 years)20073.162
Cites / Doc. (4 years)20083.232
Cites / Doc. (4 years)20093.478
Cites / Doc. (4 years)20103.744
Cites / Doc. (4 years)20113.914
Cites / Doc. (4 years)20124.156
Cites / Doc. (4 years)20134.264
Cites / Doc. (4 years)20144.149
Cites / Doc. (4 years)20153.819
Cites / Doc. (4 years)20163.466
Cites / Doc. (4 years)20173.523
Cites / Doc. (4 years)20183.592
Cites / Doc. (4 years)20193.408
Cites / Doc. (3 years)19992.290
Cites / Doc. (3 years)20002.373
Cites / Doc. (3 years)20012.423
Cites / Doc. (3 years)20022.695
Cites / Doc. (3 years)20032.831
Cites / Doc. (3 years)20042.981
Cites / Doc. (3 years)20052.961
Cites / Doc. (3 years)20062.925
Cites / Doc. (3 years)20073.085
Cites / Doc. (3 years)20083.223
Cites / Doc. (3 years)20093.579
Cites / Doc. (3 years)20103.839
Cites / Doc. (3 years)20113.735
Cites / Doc. (3 years)20124.099
Cites / Doc. (3 years)20134.027
Cites / Doc. (3 years)20143.860
Cites / Doc. (3 years)20153.649
Cites / Doc. (3 years)20163.240
Cites / Doc. (3 years)20173.486
Cites / Doc. (3 years)20183.538
Cites / Doc. (3 years)20193.323
Cites / Doc. (2 years)19992.081
Cites / Doc. (2 years)20002.106
Cites / Doc. (2 years)20012.224
Cites / Doc. (2 years)20022.664
Cites / Doc. (2 years)20032.759
Cites / Doc. (2 years)20042.877
Cites / Doc. (2 years)20052.710
Cites / Doc. (2 years)20062.635
Cites / Doc. (2 years)20072.873
Cites / Doc. (2 years)20083.230
Cites / Doc. (2 years)20093.627
Cites / Doc. (2 years)20103.553
Cites / Doc. (2 years)20113.561
Cites / Doc. (2 years)20123.632
Cites / Doc. (2 years)20133.505
Cites / Doc. (2 years)20143.460
Cites / Doc. (2 years)20153.197
Cites / Doc. (2 years)20163.093
Cites / Doc. (2 years)20173.338
Cites / Doc. (2 years)20183.226
Cites / Doc. (2 years)20193.176
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites1999464
Self Cites2000488
Self Cites2001372
Self Cites2002408
Self Cites2003454
Self Cites2004352
Self Cites2005440
Self Cites2006345
Self Cites2007296
Self Cites2008445
Self Cites2009594
Self Cites2010518
Self Cites2011588
Self Cites2012509
Self Cites2013565
Self Cites2014421
Self Cites2015390
Self Cites2016298
Self Cites2017330
Self Cites2018325
Self Cites2019310
Total Cites19994442
Total Cites20004830
Total Cites20015040
Total Cites20025326
Total Cites20035180
Total Cites20045143
Total Cites20055152
Total Cites20065388
Total Cites20075911
Total Cites20086271
Total Cites20096728
Total Cites20106975
Total Cites20116593
Total Cites20127468
Total Cites20137135
Total Cites20146728
Total Cites20155857
Total Cites20165122
Total Cites20174940
Total Cites20184712
Total Cites20194107
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19992.051
External Cites per document20002.134
External Cites per document20012.244
External Cites per document20022.489
External Cites per document20032.583
External Cites per document20042.777
External Cites per document20052.708
External Cites per document20062.738
External Cites per document20072.931
External Cites per document20082.994
External Cites per document20093.263
External Cites per document20103.554
External Cites per document20113.402
External Cites per document20123.819
External Cites per document20133.708
External Cites per document20143.618
External Cites per document20153.406
External Cites per document20163.051
External Cites per document20173.253
External Cites per document20183.294
External Cites per document20193.072
Cites per document19992.290
Cites per document20002.373
Cites per document20012.423
Cites per document20022.695
Cites per document20032.831
Cites per document20042.981
Cites per document20052.961
Cites per document20062.925
Cites per document20073.085
Cites per document20083.223
Cites per document20093.579
Cites per document20103.839
Cites per document20113.735
Cites per document20124.099
Cites per document20134.027
Cites per document20143.860
Cites per document20153.649
Cites per document20163.240
Cites per document20173.486
Cites per document20183.538
Cites per document20193.323
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents1999426
Non-citable documents2000384
Non-citable documents2001291
Non-citable documents2002279
Non-citable documents2003256
Non-citable documents2004270
Non-citable documents2005231
Non-citable documents2006245
Non-citable documents2007264
Non-citable documents2008301
Non-citable documents2009330
Non-citable documents2010345
Non-citable documents2011379
Non-citable documents2012400
Non-citable documents2013406
Non-citable documents2014394
Non-citable documents2015367
Non-citable documents2016336
Non-citable documents2017314
Non-citable documents2018277
Non-citable documents2019259
Citable documents19991940
Citable documents20002035
Citable documents20012080
Citable documents20021976
Citable documents20031830
Citable documents20041725
Citable documents20051740
Citable documents20061842
Citable documents20071916
Citable documents20081946
Citable documents20091880
Citable documents20101817
Citable documents20111765
Citable documents20121822
Citable documents20131772
Citable documents20141743
Citable documents20151605
Citable documents20161581
Citable documents20171417
Citable documents20181332
Citable documents20191236
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents19991096
Uncited documents20001044
Uncited documents2001995
Uncited documents2002939
Uncited documents2003810
Uncited documents2004712
Uncited documents2005635
Uncited documents2006721
Uncited documents2007708
Uncited documents2008746
Uncited documents2009696
Uncited documents2010635
Uncited documents2011657
Uncited documents2012652
Uncited documents2013621
Uncited documents2014630
Uncited documents2015597
Uncited documents2016563
Uncited documents2017503
Uncited documents2018453
Uncited documents2019449
Cited documents19991270
Cited documents20001375
Cited documents20011376
Cited documents20021316
Cited documents20031276
Cited documents20041283
Cited documents20051336
Cited documents20061366
Cited documents20071472
Cited documents20081501
Cited documents20091514
Cited documents20101527
Cited documents20111487
Cited documents20121570
Cited documents20131557
Cited documents20141507
Cited documents20151375
Cited documents20161354
Cited documents20171228
Cited documents20181156
Cited documents20191046
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