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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.
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...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

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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

Updated: Mar 9, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
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Modularized compact positron emission tomography detector for rapid system development.

Daoming Xi1, Xiang Liu2, Chen Zeng3

  • 1Raycan Technology Co., Ltd. , Building 17, 8 Jinfeng Road, SND, Suzhou, Jiangsu 215163, China.

Journal of Medical Imaging (Bellingham, Wash.)
|December 27, 2016
PubMed
Summary
This summary is machine-generated.

We developed a compact positron emission tomography (PET) detector for rapid system configuration. This modular PET detector achieves excellent energy and time resolutions, enabling high-resolution imaging.

Keywords:
PET detectorcross-wiremultivoltage thresholdrapid system developmentsilicon photomultiplierstripline

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Area of Science:

  • Medical Imaging
  • Nuclear Instrumentation
  • Detector Physics

Background:

  • Positron Emission Tomography (PET) systems require efficient and configurable detectors.
  • Existing PET detector technologies face challenges in modularity and data acquisition speed.
  • Advancements in detector design are crucial for improving PET system performance and accessibility.

Purpose of the Study:

  • To develop a modular, compact PET detector with digital output capabilities.
  • To enable rapid configuration and networking of multiple PET detectors for scalable systems.
  • To evaluate the performance characteristics of the developed PET detector modules.

Main Methods:

  • Designed a modular PET detector with a lutetium-yttrium oxyorthosilicate/silicon photomultiplier pixel array.
  • Implemented cross-wire and stripline readouts merged to 24 channels with a field-programmable gate array digitizer.
  • Utilized Ethernet interface with UDP/IP protocol for digital data streaming.
  • Developed software for event analysis, energy qualification, and coincidence filtering.

Main Results:

  • Achieved accurate pixel discrimination for all detector pixels.
  • Measured crystal-level energy resolution between 14.4% and 19.4%.
  • Obtained detector-level coincidence time resolution of 1.67 ns Full Width at Half Maximum (FWHM).
  • Preliminary imaging suggests potential for [Formula: see text] image resolution.

Conclusions:

  • The developed modular PET detector offers a promising solution for flexible and high-performance PET systems.
  • The digital output and networking capabilities facilitate rapid system assembly and scalability.
  • The detector's performance metrics indicate its suitability for advanced PET imaging applications.