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Microstructural analysis of pineal volume using trueFISP imaging.

Jan M Bumb1, Marc A Brockmann, Christoph Groden

  • 1Jan M Bumb, Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany.

World Journal of Radiology
|May 15, 2013
PubMed
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Most pineal glands have cystic components, leading to significant volume variation. Pineal gland volume decreases slightly with age, with minimal gender influence.

Area of Science:

  • Neuroimaging
  • Radiology
  • Anatomy

Background:

  • The pineal gland's microstructure and volume variations are not fully characterized in large clinical populations.
  • Understanding these variations is crucial for interpreting imaging findings and potential age-related changes.

Purpose of the Study:

  • To investigate the spectrum of solid and cystic microstructures within the pineal gland.
  • To quantify pineal gland volume (PGV), cystic volume, and parenchyma volume in a large adult cohort.
  • To assess the influence of age and gender on pineal gland dimensions.

Main Methods:

  • High-resolution 3D-T2-weighted True-FISP-3D imaging (1.5-T, 0.9 mm isotropic voxel) was performed on 347 adult patients.
  • Manual measurements were used to determine pineal gland volume, cystic volume, and parenchyma volume.
Keywords:
EtiologyMagnetic resonance imagingPineal cystPineal gland volumeReference range

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  • Patients with imaging artifacts or mass lesions affecting the pineal gland were excluded.

    • Main Results:

    • 40.3% of pineal glands exhibited cystic components.
    • The median pineal gland volume was 54.6 mm³.
    • Pineal gland volume showed a significant decline with increasing age (r = -0.130, P = 0.016).
    • Interindividual volume variation was substantially higher in cystic glands compared to solid glands.

    Conclusions:

    • Cysts are the primary contributors to the high interindividual variation in pineal gland volume.
    • Pineal parenchyma volume demonstrates a slight decrease with age.
    • Gender does not appear to have a significant impact on pineal gland dimensions.