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Related Experiment Video

Updated: May 16, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

CT equipment and performance issues: radiation protection 162.

¹ImPACT, Medical Physics Department, St George's Hospital, London SW17 0QT, UK. sue.edyvean@gmail.com

Radiation Protection Dosimetry

|November 29, 2012

Summary

Computed Tomography (CT) scanner technology has advanced significantly, improving image quality and dose efficiency. However, CT scans remain high-radiation procedures, necessitating updated safety criteria for modern systems.

Related Experiment Videos

Last Updated: May 16, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

Area of Science:

Medical Imaging Technology
Radiological Physics

Background:

Computed Tomography (CT) scanners have evolved since the 1970s with technological advancements.
These advancements include faster processing, better detectors, and helical/multi-detector scanning modes.
CT examinations are among the highest radiation dose procedures in medical imaging.

Purpose of the Study:

To address the evolving landscape of CT scanner technology and its implications for radiation dose.
To evaluate the current criteria for CT scanner acceptability, focusing on both qualitative and quantitative aspects.
To consider specific challenges posed by modern CT systems, such as multi-slice and wide-beam configurations.

Main Methods:

Review of technical advancements in CT scanner technology.
Analysis of existing qualitative and quantitative criteria for CT scanner acceptability (e.g., RP 162).
Consideration of hardware, software, operator, and protocol selection aspects.

Main Results:

CT technology improvements have expanded clinical applications while enhancing image quality and dose efficiency.
Despite improvements, CT procedures continue to involve significant radiation doses.
Current criteria address functional, operational, and hardware aspects, with some consideration for software and protocols.

Conclusions:

Ongoing technological evolution in CT scanning requires continuous updates to safety and performance standards.
Balancing image quality improvements with radiation dose reduction remains a critical challenge.
Modern CT systems, particularly multi-slice and wide-beam scanners, present unique challenges that need specific attention in regulatory and operational guidelines.