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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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Related Experiment Video

Updated: May 14, 2026

Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function

Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function

Published on: August 8, 2019

Interpolated average CT for attenuation correction in PET--a simulation study.

Greta S P Mok¹, Tao Sun, Tzung-Chi Huang

¹Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, China. gretamok@umac.mo

IEEE Transactions on Bio-Medical Engineering

|February 9, 2013

Summary

The interpolated average CT (IACT) method offers a robust, low-dose alternative for attenuation correction in positron emission tomography/computed tomography (PET/CT). It accurately corrects for respiratory motion, improving image quality and quantification compared to traditional helical CT methods.

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2026-06-19T13:32:44.548237+00:00

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Last Updated: May 14, 2026

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Published on: February 18, 2015