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Mikkel Bundgaard Skotting1, Anders Vedel Holst1, Tina Nørgaard Munch1

  • 1Afdeling for Hjerne- og Nervekirurgi, Københavns Universitetshospital - Rigshospitalet.

Ugeskrift for Laeger
|May 29, 2024
PubMed
Summary
This summary is machine-generated.

Brain magnetic resonance imaging (MRI) reveals more incidental findings due to advanced technology. These unexpected anomalies require careful management, with prevalence varying by age and scan quality.

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Area of Science:

  • Neuroradiology
  • Medical Imaging Technology
  • Clinical Diagnostics

Background:

  • Increased utilization of brain MRI scans.
  • Advancements in MRI technology leading to higher resolution imaging.
  • Growing number of incidental, asymptomatic findings discovered during brain MRI examinations.

Purpose of the Study:

  • To review the prevalence and implications of incidental brain MRI findings.
  • To discuss the clinical and ethical considerations associated with these anomalies.
  • To highlight factors influencing the detection rates of incidental findings.

Main Methods:

  • Systematic literature review of studies reporting incidental brain MRI findings.
  • Analysis of prevalence data, including variations based on demographics and imaging parameters.

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  • Examination of clinical and ethical guidelines for managing asymptomatic findings.

    • Main Results:

    • The prevalence of incidental brain MRI findings is reported at 4.2%, with higher rates when including white matter hyperintensities.
    • Prevalence demonstrates significant variation influenced by patient age and MRI scan quality.
    • A spectrum of findings exists, ranging from clinically insignificant to potentially serious conditions.

    Conclusions:

    • Incidental brain MRI findings are increasingly common due to technological progress.
    • Effective clinical and ethical frameworks are essential for managing these unexpected discoveries.
    • Age and MRI quality are critical determinants of incidental finding detection rates.