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Related Experiment Videos

Physiologic imaging of the brain.

R C Mehta1, M P Marks

  • 1Department of Radiology, Stanford University Medical Center, CA 94305.

Current Opinion in Radiology
|February 1, 1992
PubMed
Summary
This summary is machine-generated.

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Advanced imaging techniques like positron emission tomography and single-photon emission CT are crucial for diagnosing brain conditions including dementia, stroke, and tumors. These methods, using specialized radiopharmaceuticals, enhance diagnostic accuracy for various neurological disorders.

Area of Science:

  • Neurology
  • Radiology
  • Oncology

Background:

  • Positron emission tomography (PET) and single-photon emission CT (SPECT) have advanced significantly.
  • Improved imaging hardware and radiopharmaceutical agents expand their clinical applications.

Purpose of the Study:

  • To review the current applications of advanced imaging techniques in neurological and oncological evaluations.
  • To highlight the expanding roles of PET and SPECT in diagnosing brain disorders and neoplasms.

Main Methods:

  • Review of current literature on PET, SPECT, stable-xenon CT, and MR diffusion imaging.
  • Focus on diagnostic utility in neoplasm, stroke, epilepsy, dementia, and other neurological conditions.

Main Results:

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  • PET and SPECT are vital for evaluating neoplasms (gliomas, pituitary adenomas), dementia, stroke, epilepsy, and neuropsychiatric disorders.
  • Cerebral perfusion agents are key in SPECT for ischemia, dementia, and seizures.
  • Stable-xenon CT aids in studying ischemia related to meningitis, sickle cell disease, and vascular malformations.
  • MR diffusion imaging shows potential for white matter pathology and tumors.

    • Conclusions:

    • Advanced imaging modalities like PET and SPECT offer versatile diagnostic capabilities for a wide range of neurological and oncological conditions.
    • Ongoing technological advancements continue to broaden the scope and precision of these imaging techniques in clinical practice.