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Related Experiment Videos

Is cranial CSF volume under hormonal influence? An MR study.

R Grant1, B Condon, A Lawrence

  • 1Magnetic Resonance Imaging Unit, Institute of Neurological Sciences, Southern General Hospital, Glasgow, Scotland.

Journal of Computer Assisted Tomography
|January 1, 1988
PubMed
Summary

Premenstrual neurological symptoms are not caused by brain swelling. Magnetic resonance imaging showed cerebrospinal fluid (CSF) volume changes indicating reduced brain volume, not cerebral edema, during the premenstrual phase.

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Area of Science:

  • Neurology
  • Radiology
  • Gynecology

Background:

  • Premenstrual neurological symptoms are common, with cerebral edema and brain swelling hypothesized as potential causes.
  • Understanding the physiological basis of these symptoms is crucial for effective management.

Purpose of the Study:

  • To investigate the hypothesis that premenstrual neurological symptoms are linked to cerebral edema.
  • To quantify changes in cerebrospinal fluid (CSF) volume during the menstrual cycle using magnetic resonance imaging (MRI).

Main Methods:

  • Magnetic resonance imaging (MRI) was used to measure total cranial and lateral ventricular CSF volumes.
  • Measurements were taken midcycle and premenstrually in 20 women with normal menstrual cycles.
  • Control groups included 10 postmenopausal women and 10 men, with measurements taken two weeks apart.

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Main Results:

  • Total cranial CSF volume increased premenstrually in 19 out of 20 women, with a mean increase of 11.5 ml.
  • No significant difference in CSF volume changes was observed between women using oral contraceptives and those not using them.
  • CSF volume remained stable in the control groups of men and postmenopausal women.

Conclusions:

  • The observed premenstrual CSF volume changes suggest a reduction in brain volume, not cerebral swelling.
  • The findings do not support cerebral edema as the cause of premenstrual neurological symptoms.
  • Further research may explore alternative mechanisms underlying premenstrual neurological symptomology.