MRI Imaging Quiz
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Questions and Answers

What interaction is the basis for MRI imaging?

  • Radiofrequency wave and the hydrogen atom (correct)
  • Gravitational force and the hydrogen atom
  • Ultraviolet light and the hydrogen atom
  • Electromagnetic wave and the hydrogen atom
  • What was MRI initially called?

  • Hydrogen Imaging Technology (HIT)
  • Radio Wave Imaging (RWI)
  • Magnetic Resonance Imaging (MRI)
  • Nuclear Magnetic Resonance (NMR) (correct)
  • When was the first MRI exam performed on a human being?

  • In 1985
  • In 1977 (correct)
  • In 1960
  • In 1990
  • What is the key factor in MRI imaging?

    <p>Protons in the presence of a magnetic field</p> Signup and view all the answers

    What was MRI initially called?

    <p>Nuclear Magnetic Resonance</p> Signup and view all the answers

    When was the first MRI exam performed on a human being?

    <p>1977</p> Signup and view all the answers

    What is the primary reason for the net magnetic field of protons in the body being zero?

    <p>Random rotation of protons results in cancellation of magnetic moments</p> Signup and view all the answers

    What creates a magnetic field in protons?

    <p>Positive charge and angular momentum</p> Signup and view all the answers

    What is the main principle behind the interaction of protons with an external magnetic field?

    <p>Alignment or opposition of proton spin to the external magnetic field</p> Signup and view all the answers

    Study Notes

    Magnetic Resonance Imaging (MRI)

    • The basis for MRI imaging is the interaction between nuclear magnetic moments and an external magnetic field.

    History of MRI

    • MRI was initially called Nuclear Magnetic Resonance (NMR) imaging.
    • The first MRI exam was performed on a human being in 1977.

    Key Factors in MRI

    • The key factor in MRI imaging is the magnetic properties of hydrogen nuclei (protons) in the body.
    • The primary reason for the net magnetic field of protons in the body being zero is that the magnetic moments of the protons are randomly aligned.
    • The magnetic field in protons is created by the spin of the proton.
    • The main principle behind the interaction of protons with an external magnetic field is that the protons align either parallel or anti-parallel to the external magnetic field, depending on the strength of the field.

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    Description

    Test your knowledge about magnetic resonance imaging (MRI) and its principles, including the interaction between radiofrequency waves and hydrogen atoms in the presence of a magnetic field. Learn about the history and key concepts of MRI technology.

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