No I haven't and I hope I don't have to. Is that the same as a Colorectal test. In the UK they call it the poo test. I have that quite regularly. I don't think they are giving colonoscopies as much as they used. I think they sometimes do an MRI scan but I am claustraphobic so I don't fancy that either. I know someone in the UK who had tht and she said they only put her in the tube up to her chest or a bit lower. That would be alright.