Imaging Modalities MRI correctly answered 2023

Imaging Modalities MRI correctly answered 2023 The contrast media used in MRI contains which of the following? - correct answer gadolinium When is gating used in MRI? - correct answer to improve image quality when motion is a problem Spectroscopy is most commonly used in which of the following organs? - correct answer brain Which part of the MRI transmits and receives the signals? - correct answer coils Magnetic field strength is measured in which of the following? - correct answer gauss Which of the following was a downfall to the early permanent magnets? - correct answer were too heavy What type of information is provided by MRI? - correct answer anatomic and physiologic MRI Images are created via what type of waves? - correct answer magnetic, radio Weak signals appear how on the MRI image? - correct answer black Which of the following is the definition of relaxation? - correct answer the release of energy by protons The Resistive magnet produces heat, how do they keep the heat from harming the magnet? - correct answer They have a specialized cooling system for the magnet Which magnet is also termed a cryogenic magnet? - correct answer superconductive Which magnet has a consistent field that does not require additional heating or cooling? - correct answer permanent A smaller fringe field on a permanent magnet creates what? - correct answer less electronic interference Spin lattice relaxation (T1) is the release of energy by excited nuclei: - correct answer to their general environment