What happens if new information becomes available during the trial?

Sometimes during the course of a research study a new technique or new information becomes available which is relevant to the study. This is unlikely to happen in this trial because the type of CT scanner being used will be up-to-date and of high quality. However, should such a situation arise, the research nurse will tell you about it and discuss with you whether you wish to continue in the study or whether it would be in your best interests to withdraw.