I use Vista Diagnostics for private MRI scans as they can provide immediate appointments for patients.
Appointments can be booked by phone and I provide a referral form for you to take with you to the appointment. This provides details the area to be scanned and other relevant information.
Vista Diagnostics will then send me and you an email of the report within 24hrs and a CD of the films in 48 hrs.
Vista Diagnostics are conveniently located opposite Waterloo train station.