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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.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...

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Imaging Studies II: Positron Emission Tomography and Scintigraphy

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.
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Brain Imaging

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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Related Experiment Video

Updated: Jul 7, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space

Published on: February 1, 2016

Positron emission tomography and molecular imaging.

J Knuuti¹, F M Bengel

¹Turku PET Centre, University of Turku, Turku, Finland. juhani.knuuti@utu.fi

Heart (British Cardiac Society)

|February 16, 2008

Summary

Positron emission tomography (PET) is a leading non-invasive tool for evaluating cardiac physiology, myocardial viability, and coronary artery disease (CAD). Advanced PET-CT imaging offers enhanced assessment of CAD and future molecular imaging applications.

Area of Science:

Cardiology
Nuclear Medicine
Medical Imaging

Background:

Positron emission tomography (PET) is increasingly utilized in cardiology.
PET offers robust non-invasive evaluation of cardiac physiology.
It is a reliable tool for assessing myocardial viability and detecting coronary artery disease (CAD).

Purpose of the Study:

To highlight the capabilities of PET in cardiac assessment.
To discuss the role of PET in identifying myocardial viability and CAD.
To explore the advancements and future applications of PET in cardiology.

Main Methods:

Utilizes technical features of PET for non-invasive cardiac evaluation.
Employs absolute quantification of myocardial perfusion.

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Multi-Tracer Studies of Brain Oxygen and Glucose Metabolism Using a Time-of-Flight Positron Emission Tomography-Computed Tomography Scanner

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Last Updated: Jul 7, 2026

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Multi-Tracer Studies of Brain Oxygen and Glucose Metabolism Using a Time-of-Flight Positron Emission Tomography-Computed Tomography Scanner

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Integrates newest generation PET systems with multislice computed tomography (CT).

Main Results:

PET is the most reliable tool for myocardial viability identification.
PET accurately assesses myocardial perfusion and detects CAD.
Absolute perfusion quantification improves CAD detection and vasoreactivity assessment.

Conclusions:

PET is a powerful tool for non-invasive cardiac assessment, particularly for CAD.
Hybrid PET-CT imaging enhances CAD evaluation and offers diverse applications.
Future molecular imaging with PET promises expanded clinical utility.