Felis ISSN 2398-2950

Magnetic resonance imaging: brain

Synonym(s): MRI

Contributor(s): Ruth Dennis, Laurent Garosi

Introduction

  • Must be carried out with the patient immobilized using deep sedation or general anesthetic.
  • Anesthetic and monitoring equipment must be:
    Either Non-ferrous and MRI-compatible.
    Or Operated at a sufficient distance from the scanner such that the scanner's fringe magnetic field does not interfere with the equipment, nor attract it towards the scanner.
  • Even tiny pieces of non-ferrous metal will distort the homogeneity of the magnetic field resulting in grossly-distorted images.

All ferrous equipment must be excluded from the same area, and collars must be removed before the procedure.

  • Identity chips in the neck do not cause interference with the images, and are not erased by the magnetic field.

Anesthesia

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Scanning procedure

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Normal appearance of the brain

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Pathology

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Further Reading

Publications

Refereed papers

  • Recent references from VetMedResource and PubMed.
  • Beltran E, Platt S R, McConnell J F et al (2014) Prognostic value of early magnetic resonance imaging in dogs after traumatic brain injury: 50 cases. J Vet Intern Med 28, 1256-1262 PubMed.
  • Hecht S, Adams W H (2010) MRI of brain disease in veterinary patients part 1: basic principles and congenital brain disorders. Vet Clin Small Anim North Am 40, 21-38 PubMed.
  • Hecht S, Adams W H (2010) MRI of brain disease in veterinary patients part 2:  acquired brain disorders. Vet Clin Small Anim North Am 40, 39-63 PubMed.
  • Costanzo C, Garosi L S, Glass E N et al (2011) Brain abscess in seven cats due to bite wound: MRI findings, surgical management and outcome. J Feline Med Surg 13, 672-680 PubMed.
  • Negrin A, Lamb C R, Cappello R et al (2007) Results of magnetic resonance imaging in 14 cats with meningoencephalitis. J Feline Med Surg 9, 109-116 PubMed.
  • Klopp L S, Hathcock J T & Sorjonen D C (2000) Magnetic resonance imaging features of brain stem abscessation in two cats. Vet Rad Ultra 41, 300-307.


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