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Is Glucagon Administration Compatible With FDG PET/MRI?

Bruno Maucherat1, Roshanack Movassaghi1, Vincent Fleury1

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Glucagon analog reduces digestive peristalsis artifacts in abdominal MRI. Its use in FDG PET/MRI was evaluated for potential FDG metabolism interaction, with findings reported.

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Area of Science:

  • Medical imaging
  • Radiology
  • Nuclear medicine

Background:

  • Digestive peristalsis causes artifacts in abdominal and pelvic MRI, hindering interpretation.
  • Glucagon analog is used to reduce peristalsis and MRI artifacts, but its effect on FDG PET/MRI is unknown.

Purpose of the Study:

  • To assess the interaction between glucagon analog and FDG metabolism in PET/MRI.
  • To evaluate the impact of glucagon analog on FDG PET/MRI image quality.

Main Methods:

  • FDG PET/MRI scans were acquired in patients with and without glucagon analog administration.
  • Image quality and potential metabolic changes were analyzed.

Main Results:

  • Glucagon analog effectively reduced digestive peristalsis artifacts.
  • No significant adverse interaction with FDG metabolism was observed, preserving image quality.

Conclusions:

  • Glucagon analog can be safely used in conjunction with FDG PET/MRI.
  • It improves image quality by reducing motion artifacts without compromising metabolic information.