Age-related Changes in Locus Ceruleus on Neuromelanin Magnetic Resonance Imaging at 3 Tesla

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Author(s)

Abstract

Purpose: To investigate age-related changes in the locus ceruleus (LC) in healthy subjects using neuromelanin magnetic resonance (MR) imaging at 3 Tesla.<br> Methods: We examined 64 healthy volunteers (aged 23 to 80 years) using neuromelanin-sensitive T<sub>1</sub>-weighted images and measured the contrast of areas of high signal intensity corresponding to the LC.<br> Results: A pair of punctate areas of high signal intensity that represented neuromelanin within the noradrenergic neurons of the LC was easily recognized in all subjects. The contrast ratio of the LC to the adjacent pontine tegmentum increased to the age of 40 to 59 years and gradually and significantly decreased in elderly subjects. This correlates well with pathologically proven age-related changes in neuromelanin content within the LC.<br> Conclusion: Age-related variance should be considered when determining the existence of abnormalities in the LC.<br>

Journal

  • Magnetic Resonance in Medical Sciences

    Magnetic Resonance in Medical Sciences 5(4), 197-200, 2006-12-31

    Japanese Society for Magnetic Resonance in Medicine

References:  19

Codes

  • NII Article ID (NAID)
    10018514774
  • NII NACSIS-CAT ID (NCID)
    AA11648770
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    13473182
  • Data Source
    CJP  J-STAGE 
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