Finally, if you stick to your low-carb diet via the use of prepackaged foods, experts say read the label carefully to avoid ingredients that are notoriously responsible for gastrointestinal upsets, and especially excess gas.
Magnetic Resonance Imaging (MRI). Guide. 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.In many cases, MRI gives different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan.n MRI scan can be done for the: 1  Head. 2  MRI can look at the brain for tumors, an aneurysm, bleeding in the brain, nerve injury, and other problems, such as damage caused by a stroke. 3  MRI can also find problems of the eyes and optic nerves, and the ears and auditory nerves.
An MRI scan can be used as an extremely accurate method of disease detection throughout the body and is most often used after the other testing fails to provide sufficient information to confirm a patient's diagnosis.In the head, trauma to the brain can be seen as bleeding or swelling.n MRI scan can evaluate the structure of the heart and aorta, where it can detect aneurysms or tears. MRI scans are not the first line of imaging test for these issues or in cases of trauma.