Erratum to: Abdom Imaging (2006) 31:120–122 DOI 10.1007/s00261-005-0163-5

This article was inadvertently published a second time under DOI: 10.1007/s00261-006-9114-z.

Official publication is under DOI: 10.1007/s00261-005-0163-5 in Abdom Imaging (2006) 31:120–122.