Since the Bank Secrecy Act of 1973 requires your bank to microfilm all of your checks and hold these records for six years, the state can get intimate details of your life from a study of your checking account.
The rap against MRIs as a diagnostic tool for low back pain is not that the scans usually reveal nothing, or even that they're expensive, it's that they often show a lot of abnormalities in the back that may have nothing to do with the source of your pain.
A MRI scan of the brain, without contrast. Most MRI testing is done without contrast. An MRI with contrast may help doctors measure a small tumor to determine if treatments are working properly. An MRI machine uses the magnetic properties of particles in the body to form an image.