TY - JOUR T1 - CT and chronic daily headache JF - British Journal of General Practice JO - Br J Gen Pract SP - 226 LP - 226 DO - 10.3399/bjgp11X561384 VL - 61 IS - 584 AU - Keith Hopcroft AU - Richard J Davenport Y1 - 2011/03/01 UR - http://bjgp.org/content/61/584/226.abstract N2 - We read with interest Simpson et al's paper regarding direct access computerised tomography (CT) for the investigation of chronic daily headache (CDH), and noted their conclusions that important benefits to patients and GPs were demonstrated, through reassurance and potential cost savings.1 We challenge these conclusions, and suggest that an alternative interpretation might be that brain imaging for CDH is a waste of NHS resources, given the exceedingly low yield of pathology, and may well cause more harm than good.First, the study provided no evidence that patients were reassured by a normal scan. A randomised controlled trial of imaging in CDH failed to provide evidence that scans are persistently reassurring.2 Indeed, although intuitively one might expect normal scans to … ER -