Erratum to: Eur Radiol

DOI 10.1007/s00330-014-3534-x

Due to a transcription error, reference 7 was mistakenly not unblinded after the review process. We would like to clarify that reference 7 should read as follows:

7. Schmaranzer F, Klauser A, Kogler M et al. (2014) Improving visualization of the central compartment of the hip with direct MR arthrography under axial leg traction: a feasibility study. Acad Radiol 21:1240–1247

We apologise for this multifactorial error.