Liver Magnetic Resonance Imaging (MRI)
Magnetic resonance imaging (MRI) is a test done with a large machine that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the belly. In many cases MRI gives information about structures in the body that cannot be seen as well with an X-ray, ultrasound, or CT scan. Similar to recommendations for abdominal CT scanning, no current evidence exists that supports a recommendation to use liver MRI as a routine surveillance test. For patients who have a nodule greater than 1 cm detected on ultrasound, a dynamic contrast-enhanced MRI is often recommended as a secondary test. This should be distinguished from the use of MRI as a screening test since current guidelines do not recommend MRI as a screening test.