Erratum to: Abdom Imaging (2006) 31:545–548 DOI 10.1007/s00261-005-0255-2

This article was inadvertently published a second time under DOI: 10.1007/s00261-006-9023-1.

Official publication is under DOI: 10.1007/s00261-005-0255-2 appearing in Abdom Imaging (2006) 31:545–548.