Erratum to: Abdom Imaging (2006) 31:596–597 DOI 10.1007/s00261-005-0122-1

This article was inadvertently published a second time under DOI: 10.1007/s00261-006-9110-3.

Official publication is under DOI: 10.1007/s00261-005-0122-1 appearing in Abdom Imaging (2006) 31:596–597.