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Example sentences from the Web for MRI
So, Fridays at five o' clock the MRI machine is probably not being used, and that's a fixed cost.
Additionally, MRI readings showed increased brain activity in the subjects while observing the photos of the more successful CEOs.Mirror of Mind: What the Face Tells Us About Intuition|Nicholas Mancusi|December 11, 2013|DAILY BEAST
An MRI done just days earlier revealed a tumor in his left knee.Israeli, Gaza Cancer Patients Become Hanukkah Best Friends|Itay Hod|December 12, 2012|DAILY BEAST
Then, guided by an MRI that shows where the motor neurons are, Boulis injects the stem cells, which takes about two minutes.
In the world of the MRI and the PET scan, it seems that there is “more than one echo of the insalubrious past.”
British Dictionary definitions for MRI
Medical definitions for MRI
Scientific definitions for MRI
A Closer Look
A picture is worth a thousand words, and nowhere is this more apparent than in the powerful diagnostic technique known as magnetic resonance imaging (MRI), which has revolutionized many areas of medicine. Compared to imaging techniques that use x-rays, such as computerized axial tomography (CAT), MRI generates far more detailed three-dimensional images of the soft tissues of the body, especially of the nervous system from the brain to the spine. These images greatly improve the ability of doctors to distinguish abnormal from healthy tissues. MRI can also be used to observe and measure dynamic physiological changes inside a patient without cutting into or penetrating the body. To produce an image, an MRI machine uses a powerful magnet to generate a magnetic field. When a patient lies within this field, the nuclei of atoms within the body align themselves with the magnetic field (much as iron filings line up around a magnet). Radio waves are then pulsed through the body, causing the nuclei to change their alignment with respect to the axis of the magnetic lines of force. As they return to their previous state after each pulse, they produce faint, distinctive radio signals; the rate at which they emit signals and the frequency of the signals depend on the type of atom, the temperature, the chemical environment, position, and other factors. These signals are detected by coils around the body and processed by a computer to produce images of internal structures. MRI holds yet another significant advantage over CAT in that exposure to potentially harmful x-ray radiation is avoided.