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Positron Emission Tomography

Positron Emission Tomography

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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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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Molecular imaging with PET--open questions?

P A Schubiger¹

¹Animal Imaging Center-PET, Center for Radiopharmaceutical Science of ETH, PSI and USZ, Zürich, Switzerland. august.schubiger@pharma.ethz.ch

Ernst Schering Research Foundation Workshop

|December 19, 2006

Summary

Defining molecular imaging as in vivo imaging of biological processes using molecular probes, this study highlights the critical need for optimal probes. Positron emission tomography (PET) probes offer superior sensitivity for general application, with methods for their development and characterization discussed.

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Area of Science:

Biomedical imaging
Medical diagnostics
Radiochemistry

Background:

Molecular imaging is a rapidly evolving field with diverse interpretations.
A precise definition emphasizes in vivo imaging of biological processes using molecular probes.
The development of effective molecular imaging probes is a significant challenge.

Purpose of the Study:

To define molecular imaging and identify the key challenges in probe development.
To compare different types of molecular imaging probes (nuclear, optical, magnetic).
To discuss methods for efficient development and characterization of PET probes.

Main Methods:

Literature review and discussion of existing molecular imaging probe technologies.
Comparison of sensitivity and applicability of nuclear, optical, and magnetic probes.
Exploration of in vitro and in vivo characterization methods for PET probes.

Main Results:

Positron emission tomography (PET) probes are identified as having the highest sensitivity for general molecular imaging applications.
Various methods for the development and characterization of PET probes are discussed.
Challenges in the reliability of animal imaging and data evaluation are highlighted.

Conclusions:

The optimal molecular imaging probe is crucial for advancing the field.
PET probes demonstrate superior sensitivity, making them ideal for broad clinical use.
Further research is needed to address open questions in animal imaging and data evaluation for molecular imaging.