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Updated: Jun 30, 2026
14:19
A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
Published on: February 1, 2016
Combined positron emission tomography-computed tomography: the historical perspective
1Department of Medicine and Radiology, University of Tennessee Graduate School of Medicine, Knoxville, TN 37920, USA. dtownsend@mc.utmck.edu
Seminars in Ultrasound, CT, and MR
|September 18, 2008
Summary
The development of combined Positron Emission Tomography-Computed Tomography (PET-CT) scanners in the 1990s revolutionized medical imaging. Today, over 2500 PET-CT scanners are in clinical use worldwide, highlighting the technology's rapid adoption and impact.
Area of Science:
- Medical Imaging
- Nuclear Medicine
- Radiology
Background:
- The 1990s saw the emergence of dual-modality imaging devices for clinical use.
- A prototype combined Positron Emission Tomography-Computed Tomography (PET-CT) underwent clinical evaluation starting in mid-1998.
Observation:
- Positive results from the three-year evaluation spurred demand for commercial PET-CT systems.
- The first commercial PET-CT scanner was installed in 2001.
Findings:
- Major medical imaging vendors introduced their own PET-CT designs, leading to rapid technology adoption.
- Over 2500 PET-CT scanners are currently operational globally.
Implications:
- PET-CT technology has become a standard diagnostic tool in clinical practice.
- The widespread use of PET-CT signifies a major advancement in diagnostic imaging capabilities.
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