So Geoff Koffman, Stephen Young and their team at Guy's Hospital and Guy's Nuffield House in London have been experimenting with the use of ultrasound to examine the wounds of kidney-transplant patients.
Stephen Byers, Patricia Hewitt and Geoff Hoon, who were secretly filmed as part of an investigation by the Sunday Times and Channel 4's Dispatches programme, have been suspended from the Parliamentary Labour Party pending an investigation into the claims.