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This finding was determined after the researchers collected data on Medicare patients who received medical attention for low back pain from 1998 to 2005. This information was compared with data showing the number of MRI machines in various areas.
However, the researchers add that past studies have shown increased surgery rates may not benefit a patient suffering from lower back pain, and that MRI machines "may detect anomalies" unrelated to their condition.
There have also been reports that some people experience MRI contrast side effects during the hospital-given test, particularly kidney patients on dialysis.