MRI Imaging Quiz

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9 Questions

What interaction is the basis for MRI imaging?

Radiofrequency wave and the hydrogen atom

What was MRI initially called?

Nuclear Magnetic Resonance (NMR)

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

In 1977

What is the key factor in MRI imaging?

Protons in the presence of a magnetic field

What was MRI initially called?

Nuclear Magnetic Resonance

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

1977

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

Random rotation of protons results in cancellation of magnetic moments

What creates a magnetic field in protons?

Positive charge and angular momentum

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

Alignment or opposition of proton spin to the external magnetic field

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.

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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