History of Magnetic Resonance Imaging (MRI)
\nPhysicians send patients for MRI\u2019s to help them diagnose medical conditions. Do you know what an MRI is?
\nAn MRI is a computerized map of harmless radio signals emitted by the human body. It is excellent for viewing soft tissue and seeing any defects that may be present.
\nIn 1977 the first human scan was performed in a prototype MRI machine.
\nMRI works by creating a strong magnetic field, protons in the nucleus of the hydrogen atoms are magnetized.
\n\u2022\u00a0MRI creates a steady state of magnetism in the body
\n\u2022\u00a0Radio waves during the study change the steady state orientation of protons
\n\u2022\u00a0MRI stops the radio waves and measures the body\u2019s electromagnetic transmission
\n\u2022\u00a0Signals that are transmitted are used to create images of the body by computerized axial tomography.
\nThe rotating magnetic field was discovered by Nikola Tesla in 1882. This eventually led to the definition of the Tesla Unit which describes the strength of a magnetic field. MRI machines, which were developed almost a century later, are calibrated in Tesla Units. The stronger the magnetic field, the stronger the amount of radio signals that are given off by the body\u2019s atoms. The stronger the radio signal will lead to a better quality of the MRI image.
\nJamaica Hospital offers the most up-to-date MRI technology and an appointment can be scheduled by calling 718-206-6743. <\/p>\n
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