Typical foods for a low-carb diet. In general, a low-carb diet focuses on proteins, including meat, poultry, fish and eggs, and some nonstarchy vegetables. A low-carb diet generally excludes or limits most grains, legumes, fruits, breads, sweets, pastas and starchy vegetables, and sometimes nuts and seeds. Some low-carb diet plans allow small amounts of certain fruits, vegetables and whole grains.
Magnetic resonance imaging is one of several methods used to reveal the body's internal structures and functions for research and diagnostic purposes. Through the use of a strong magnetic field and radio pulses, MRI technicians can create detailed images of tissues throughout the body. It's especially useful for soft tissues concealed by bones and other dense tissues, in areas such as the brain and joints.
What is an MRI scan? An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures. The MRI scanner is a tube surrounded by a giant circular magnet. The patient is placed on a moveable bed that is inserted into the magnet. The magnet creates a strong magnetic field that aligns the protons of hydrogen atoms, which are then exposed to a beam of radio waves.