Erratum to: Abdom Imaging (2006) 31:433–438 DOI 10.1007/s00261-005-8017-8

This article was inadvertently published a second time under DOI: 10.1007/s00261-006-9103-2.

Official publication is under DOI: 10.1007/s00261-005-8017-8 appearing in Abdom Imaging (2006) 31:433–438.