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Related Experiment Videos

Quantitative SPECT cisternography in normal pressure hydrocephalus

A Larsson1, A Arlig, A C Bergh

  • 1Department of Neurology, University of Gothenburg, Sahlgren Hospital, Sweden.

Acta Neurologica Scandinavica
|September 1, 1994
PubMed
Summary
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Quantitative SPECT radionuclide cisternography (RC) aids in diagnosing normal pressure hydrocephalus (NPH). Higher ventricular counts in NPH patients predicted successful shunt surgery outcomes.

Area of Science:

  • Neurology
  • Nuclear Medicine
  • Neurosurgery

Background:

  • Normal pressure hydrocephalus (NPH) is a neurological condition characterized by impaired cerebrospinal fluid (CSF) absorption.
  • Accurate diagnosis of NPH is crucial for effective treatment, often involving CSF shunting.
  • Radionuclide cisternography (RC) has been explored as a diagnostic tool for hydrocephalus.

Purpose of the Study:

  • To evaluate the utility of quantitative radionuclide cisternography (RC) using single photon emission computerized tomography (SPECT) in diagnosing normal pressure hydrocephalus (NPH).
  • To determine if RC parameters can predict the outcome of shunt surgery in NPH patients.

Main Methods:

  • Quantitative RC with SPECT was performed on 21 NPH patients, 8 with other brain diseases and hydrocephalus, and 7 with dementia.

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  • Measurements included total intracranial counts and counts within the lateral and third ventricles.
  • Patient outcomes after shunt surgery were assessed.

    • Main Results:

    • All 15 NPH patients evaluated post-surgery showed improvement after shunt placement.
    • Ventricular and total intracranial counts increased over time in all groups but remained stable in distribution.
    • NPH patients exhibited higher relative ventricular counts compared to dementia patients.
    • Relative ventricular counts were predictive of shunt surgery success.

    Conclusions:

    • Quantitative SPECT RC is a valuable diagnostic tool for investigating NPH.
    • Specific ventricular count patterns identified via SPECT RC can predict shunt surgery outcomes.
    • This technique offers a non-invasive method to assess CSF dynamics in NPH.