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 magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. The radiologist may discuss initial results of the MRI with you right after the test. Complete results are usually ready for your doctor in 1 to 2 days.