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Related Experiment Videos

CT abnormalities in tardive dyskinesia.

V W Swayze1, W R Yates, N C Andreasen

  • 1University of Iowa College of Medicine, Iowa City 52242.

Psychiatry Research
|October 1, 1988
PubMed
Summary
This summary is machine-generated.

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Neuropathology in tardive dyskinesia (TD) may involve the striatum. This study used brain imaging in young chronic schizophrenics, finding differences in CT variables between TD and non-TD groups, suggesting subtle abnormalities.

Area of Science:

  • Neuroimaging
  • Psychiatry
  • Neurology

Background:

  • Tardive dyskinesia (TD) is suspected to involve striatal neuropathology.
  • Previous CT studies in older adults yielded largely negative results.
  • Investigating neuropathological changes in young chronic schizophrenics is crucial.

Purpose of the Study:

  • To identify neuropathological abnormalities in the periventricular region of young chronic schizophrenics using in vivo brain imaging.
  • To assess caudate atrophy using a specific ratio of frontal horn area to maximal internal skull area (FHBR).
  • To compare CT variables between tardive dyskinesia and non-tardive dyskinesia groups.

Main Methods:

  • Utilized computed tomography (CT) for in vivo brain imaging in young chronic schizophrenics.

Related Experiment Videos

  • Calculated frontal horn to maximal internal skull area ratio (FHBR) as a measure of caudate atrophy.
  • Performed ventricle-brain ratio (VBR) measurement and cortical atrophy rating.

    • Main Results:

    • Significant differences were observed in CT variables between the tardive dyskinesia (TD) and non-TD control groups.
    • The FHBR measure showed potential for detecting caudate atrophy.
    • While CT revealed differences, subtle neuropathological abnormalities may still be present.

    Conclusions:

    • CT imaging revealed differences in periventricular brain regions between TD and non-TD groups in young chronic schizophrenics.
    • Findings suggest that while CT may not detect gross abnormalities, subtler changes could exist.
    • Magnetic resonance imaging (MRI) may offer superior detection of subtle neuropathological differences in TD due to its advanced tissue differentiation capabilities.