title: Letter to the Editor.
authors.affiliation: Imaging Department, Royal Victoria Hospital, 274 Grosvenor Road, Belfast, BT12 6BA, UK. mccloskf@tcd.ie.
authors.forename: Fiona
authors.initials: F
authors.lastname: McCloskey
authors.affiliation: Imaging Department, Royal Victoria Hospital, 274 Grosvenor Road, Belfast, BT12 6BA, UK.
authors.forename: Raghuram
authors.initials: R
authors.lastname: Sathyanarayana