The rate of neuroimaging during office visits for headaches rose from 5.1% in 1995 to 14.7% in 2010, according to an analysis of data from the National Ambulatory Medical Care Survey. From 2007 to 2010, these scans cost an estimated $3.9 billion, researchers reported in JAMA Internal Medicine. Headache care guidelines do not support the routine use of neuroimaging, so the findings suggest a possible overuse of the diagnostic tools.

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