An imaging technique used to measure the elasticity of tissue by gently shaking the tissue in a magnetic resonance imaging (MRI) machine. The technique employs standard MRI equipment with a few modifications and a vibrating metal plate placed on the skin. Magnetic resonance elastography (MRE) works by measuring the wavelength of the vibrations sent through the tissues. Pulsing the magnetic field in the MRI scanner in tune with the mechanical vibrations freezes the pattern of waves, permitting the wavelength to be measured. The elasticity of the tissue can then be calculated using this measure. MRE is being applied to the study of skeletal muscle since the stiffness of a muscle changes during muscle contraction. The technique may also be applied to breast cancer and other tumors that tend to be harder than the surrounding normal tissue.
- Magnetic resonance imaging
A procedure that uses magnetism, radio waves, and a computer to create pictures of areas inside the body. Abbreviated MRI. An MRI is painless and has the advantage of avoiding x-ray radiation exposure. There are no known risks of an MRI. The benefits of an MRI relate to its precise accuracy in detecting structural abnormalities […]
- Magnetic resonance perfusion imaging
A special type of magnetic resonance imaging (MRI) that uses an injected dye in order to see blood flow through tissues.
- Magnetic resonance spectroscopic imaging
(MRSI) A noninvasive imaging method that provides information about cellular activity (metabolic information). It is used in oncology along with magnetic resonance imaging (MRI) which provides information about the shape and size of the tumor (spacial information). Also called 1H-nuclear magnetic resonance spectroscopic imaging and proton magnetic resonance spectroscopic imaging.
- Magnetic-targeted carrier
A tiny bead made from particles of iron and carbon that can be attached to an drug. A magnet applied from outside the body then can direct the drug, for example, to the site of a tumor. This can keep a larger dose of the drug at the tumor site for a longer period of […]
- Mainstream medicine
Medicine as practiced by holders of M.D. or D.O. degrees and by their allied health professionals, such as physical therapists, psychologists, and registered nurses. The term “mainstream medicine” implies that other forms of medicine are outside the mainstream.