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Related Experiment Videos

Neuroreceptor imaging with SPECT.

R B Innis1

  • 1Department of Psychiatry, Yale University, School of Medicine, Conn.

The Journal of Clinical Psychiatry
|November 1, 1992
PubMed
Summary
This summary is machine-generated.

Single photon emission computed tomography (SPECT) imaging offers valuable insights into brain receptors and neurotransmitters. This review highlights SPECT

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Area of Science:

  • Neuroscience
  • Radiology
  • Nuclear Medicine

Background:

  • Single photon emission computed tomography (SPECT) is a functional imaging technique.
  • SPECT enables quantitative measurements of brain receptors and endogenous neurotransmitters.
  • Neuroreceptor imaging has significant experimental and clinical potential.

Purpose of the Study:

  • To review the application of SPECT for neuroreceptor imaging.
  • To exemplify SPECT's capabilities using studies of benzodiazepine, dopamine D2, and dopamine reuptake sites.
  • To discuss the clinical applicability of SPECT neuroreceptor imaging agents.

Main Methods:

  • Utilizing tracers labeled with the radioisotope 125I.
  • Employing tracers with high affinity, high brain uptake, and high specific to nonspecific binding ratios.

Related Experiment Videos

  • Conducting imaging studies on human and nonhuman primate brains.

    • Main Results:

    • Demonstrated high affinity and brain uptake of 125I-labeled tracers.
    • Achieved high ratios of specific to nonspecific binding for neuroreceptors.
    • Presented imaging data from human and nonhuman primate brains.

    Conclusions:

    • SPECT is a capable tool for neuroreceptor imaging.
    • 125I-labeled tracers show promise for in vivo studies.
    • SPECT neuroreceptor imaging holds potential for clinical applications.