Abstract
June marked the month that Thomson Reuters released the impact factors for scientific journals. The Journal of Vascular and Interventional Radiology (JVIR) had a notable and very significant jump this year to 2.409 (from 2.149). As an editor, I’m interested in this and other quantitative measures, such as article half-lives, immediacy indices, and Eigenfactors (1). The impact factor is calculated from the mean of citations per manuscript in a calendar year divided by the total papers published in the two preceding years. Despite its dominant position in the world of journal metrics, the impact factor is a single partial metric that captures but one aspect of an academic journal’s universe, the scope of its scientific inquiry, and its vision or goals. We treat, and publish on, nearly every aspect of medicine and
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