Citation frequency (CF) is considered the measure of academic interest and scientific value of an article, and it may reflect the current and future practice of radiology and medicine. The contents of highly-cited articles may represent recent academic trends in medicine and science in an academic community related to the journal. Articles with high CF may provide researchers an insight on areas of research interest. According to the annual CFs of 398 articles published in 2017-2019, reported in the Journal Citation Reports (Web of Science core collection) by Clarivate Analytics as of October 31, 2020, there were 12 (3.0%) very highly-cited articles (annual CF, 10-51), 15 (3.8%) highly-cited articles (annual CF, 5.0-9.75), 37 (9.3%) intermediately-cited articles (annual CF, 3.0-4.67), and 276 (69.3%) low-citation articles (annual CF, 0.25-2.67). Fifty-eight articles (14.6%) were not cited at all. Fifty-one articles (12.8%) were cited 10 or more times in total. The average CF of original articles was 4.17, while that of review articles was 14.01. Thirty-five (12.3%) of 284 original articles were not cited at all, while four (5.6%) of the 72 review articles were not cited. The numbers of