Characterizing Brain Tumor Research: The Role of the National Institutes of Health

Abstract

The contribution of radiology to brain tumor research is unknown. We sought to determine how the proportion of neuro-oncologic publications generated by radiology departments has changed and if there is an association with NIH funding levels. Therefore we searched The National Library of Medicine's PubMed database for all articles published on brain neoplasms from 1996 to 2007. Country and department of origin and NIH grant support were noted for each article. Approximately 10% of brain tumor publications originated from radiology departments, ranking third among medical specialties. NIH funding for this research grew from less than 20% in 1996 to more than 50% in 2007. Overall NIH funding levels rose approximately 2.5 fold during this time. The U.S. was the dominant producer of brain tumor publications, and the gap between the U.S. and the rest of the world grew over the study period. Thus a substantial proportion of brain tumor publications originate from radiology departments, and the percentage of this research that is funded by the NIH has grown significantly during a period of increasing NIH budgets.

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