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[Anesthesiological problems in magnetic resonance]

A Carriero1, A G Tonni, G Bosco

  • 1Instituto di Scienze Radiologiche, Università G. D'Annunzio, Chieti.

La Radiologia Medica
|December 1, 1994
PubMed
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Isoflurane anesthesia is a safe and effective sedation for Magnetic Resonance Imaging (MRI) procedures in patients of all ages. This method ensures high-quality images with minimal complications, suitable for outpatient settings.

Area of Science:

  • Medical Imaging
  • Anesthesiology
  • Pediatric Imaging

Background:

  • Magnetic Resonance Imaging (MRI) requires effective sedation for patient comfort and image quality.
  • General anesthesia is often necessary for pediatric and some adult patients undergoing MRI.
  • Assessing the safety and efficacy of anesthetic agents in MRI environments is crucial.

Purpose of the Study:

  • To evaluate the safety and efficacy of isoflurane anesthesia for Magnetic Resonance Imaging (MRI) in a diverse patient population.
  • To assess the complication rates and image quality associated with isoflurane-based anesthesia during MRI scans.

Main Methods:

  • A prospective study involving 68 patients (age range: 9 days to 77 years) undergoing MRI.
  • Anesthesia administered included isoflurane for patients aged 0-10 years and i.v. propofol with isoflurane for patients aged 11-77 years.

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  • MRI was performed using a 1.5 T superconductive magnet across various anatomical regions, primarily the brain.
  • Main Results:

    • Severe complications occurred in only 2 patients (3%), including respiratory depression and bronchospasm.
    • Minor complications were observed in 5 additional patients.
    • Excellent image quality was achieved in 75% of cases, with minor movement artifacts in the remaining 25%.

    Conclusions:

    • Isoflurane anesthesia is a safe, effective, and efficient sedation method for patients undergoing MRI.
    • The technique is well-tolerated across a wide age range and suitable for outpatient MRI procedures.
    • High image quality can be consistently obtained using isoflurane anesthesia during MRI.