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Related Concept Videos

Positron Emission Tomography01:29

Positron Emission Tomography

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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
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Brain Imaging01:14

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
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Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
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Related Experiment Video

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Radiotracer Administration for High Temporal Resolution Positron Emission Tomography of the Human Brain: Application to FDG-fPET
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Adenosine receptor PET imaging in human brain.

Masahiro Mishina1, Kiich Ishiwata2

  • 1Department of Neurological Science, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan; Research Team for Neuroimaging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.

International Review of Neurobiology
|September 2, 2014
PubMed
Summary

Positron emission tomography (PET) enables in vivo imaging of brain receptor binding. New radiotracers are advancing the study of adenosine receptors, particularly A1 and A2A subtypes, for various health conditions.

Keywords:
Adenosine A(1) receptorAdenosine A(2A) receptorMolecular imaging

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Area of Science:

  • Nuclear Medicine
  • Neuroscience
  • Radiochemistry

Background:

  • Positron emission tomography (PET) is a powerful in vivo imaging modality.
  • PET allows for the quantitative assessment of regional receptor-binding capacity in the brain.
  • Adenosine receptors, specifically A1 and A2A subtypes, play crucial roles in neurological functions and diseases.

Purpose of the Study:

  • To review advancements in brain PET imaging for adenosine receptors.
  • To discuss novel radioligands developed for imaging adenosine receptors.
  • To compare the utility of different radioligands in both healthy individuals and those with diseases.

Main Methods:

  • Utilizing Positron Emission Tomography (PET) for in vivo imaging.
  • Development and application of novel radiotracer chemistry.
  • Analysis of regional receptor-binding capacity in the brain.

Main Results:

  • Significant progress has been made in developing PET imaging probes for adenosine receptors.
  • Novel radioligands offer improved specificity and sensitivity for adenosine A1 and A2A receptors.
  • These advancements facilitate the study of adenosine receptor function in health and disease states.

Conclusions:

  • PET imaging is a valuable tool for studying brain adenosine receptors in vivo.
  • The development of advanced radioligands is crucial for accurate assessment of receptor binding.
  • This technology holds promise for understanding and diagnosing neurological disorders.