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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
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Computed Tomography01:10

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
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Published on: September 11, 2011

Radiation protection in newer imaging technologies.

Madan M Rehani1

  • 1Radiation Protection of Patients Unit, International Atomic Energy Agency, PO Box-100, A 1400 Vienna, Austria. M.Rehani@iaea.org

Radiation Protection Dosimetry
|February 10, 2010
PubMed
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Radiation protection in computed tomography (CT) is a growing concern with manufacturers aiming for sub-mSv doses. Despite rapid advancements in dose reduction techniques, adoption lags behind development, highlighting a need for better practice surveys.

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Area of Science:

  • Medical Imaging
  • Radiology
  • Radiation Protection

Background:

  • Emerging imaging technologies frequently prompt new research on radiation protection.
  • Computed tomography (CT) is a central technology in many of these advancements.
  • There is increasing public and regulatory focus on reducing radiation doses from medical imaging.

Purpose of the Study:

  • To highlight the rapid evolution of radiation protection research in modern imaging technologies.
  • To discuss the shift from technological innovation to dose reduction as a primary goal in CT.
  • To identify the gap between the development of dose reduction techniques and their clinical adoption.

Main Methods:

  • Review of recent peer-reviewed literature on radiation protection in CT.
  • Analysis of trends in CT technology and radiation dose targets.
  • Discussion of the adoption rate of dose reduction techniques.

Main Results:

  • Radiation protection is a major focus, with manufacturers targeting sub-mSv effective doses for CT procedures.
  • The development of dose reduction techniques is outpacing their implementation in clinical practice.
  • Cardiac CT may achieve doses within 5 mSv, but widespread two-digit mSv doses persist.

Conclusions:

  • The field is experiencing a rapid pace of innovation in radiation dose reduction for CT.
  • A significant gap exists between the development and adoption of these dose-saving technologies.
  • Further large-scale surveys are needed to assess current practices and the impact of technological changes.