Positron emission tomography, or PET, is a functional imaging technique that uses radioactive substances called radiotracers to visualize and measure changes in the body's metabolic processes. A radiopharmaceutical, a radioactive substance carried by a drug, is injected into the body, and as it undergoes beta decay it releases a positron; when that positron meets an electron the collision produces two gamma rays traveling in opposite directions, which detectors capture to reconstruct a three-dimensional image. PET scanners are used to help diagnose and manage cancer, heart disease and neurological disorders, and they are often combined with computed tomography hardware to form a single PET-CT scanner for one integrated imaging session. The source consulted for this entry does not name who developed PET or when, so that origin is recorded here as a gap rather than guessed.
Facts
Partially Attested
YearEarlier single-plane PET prototypes exist (Robertson's 1961 Brookhaven scanner), so 1974 marks the first multislice cylindrical array PET scanner rather than the earliest experimental prototype. SignificancePET is used to diagnose and manage cancer treatment, in cardiology and cardiac surgery, and in neurology and psychiatry. 1 FAQs
Who built the first multislice cylindrical PET scanner?
A group led by Ter-Pogossian at the Mallinckrodt Institute of Radiology completed it in 1974.
The first multislice cylindrical array PET scanner was completed in 1974 at the Mallinckrodt Institute of Radiology by the group led by Ter-Pogossian. It followed earlier detector designs, and it was part of the move toward ring-shaped detector arrays that became the prototype of the current shape of PET scanners.
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Source Positron emission tomography - Wikipedia
Sources
1. Positron emission tomography - Wikipedia
History section
The first multislice cylindrical array PET scanner was completed in 1974 at the Mallinckrodt Institute of Radiology by the group led by Ter-Pogossian.
Introduction section
PET is used to diagnose and manage cancer treatment, in cardiology and cardiac surgery, and in neurology and psychiatry.
In Field: Biomedical Engineering, Categories
3D nuclear medical imaging
In Group: Medical Imaging Systems, Lead
Positron emission tomography (PET) is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.
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