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Related Experiment Video

Updated: Jul 15, 2025

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[Measurement of Average Glandular Dose Using Multiparameter X-ray Measuring Instrument].

Tsuyoshi Kobayashi1, Tomomi Koyama2, Masami Terada2

  • 1Medical Safety Section, Medical Policy Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government.

Nihon Hoshasen Gijutsu Gakkai Zasshi
|October 1, 2023
PubMed
Summary
This summary is machine-generated.

A new multiparameter X-ray measuring instrument simplifies average glandular dose (AGD) assessment in mammography. This device significantly reduces measurement time and exposure while maintaining accuracy for quality control.

Keywords:
average glandular dose(AGD)entrance surface air karma (ESAK)half-value layer (HVL)mammographymultiparameter X-ray measuring instrument

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Area of Science:

  • Medical Physics
  • Radiological Imaging
  • Radiation Dosimetry

Context:

  • Accurate mammography quality control relies on precise average glandular dose (AGD) calculations.
  • Traditional methods for measuring half-value layer (HVL) and entrance surface air kerma (ESAK) are time-consuming and involve significant X-ray exposure.
  • Advancements in measuring instruments now allow for simultaneous acquisition of multiple X-ray parameters.

Purpose:

  • To evaluate the accuracy and efficiency of a multiparameter X-ray measuring instrument for AGD determination in mammography.
  • To compare measurements obtained with the new instrument against standard ionization dosimeters.
  • To assess the performance of the instrument with both rhodium (Rh) and tungsten (W) anode X-ray tubes.

Summary:

  • The study utilized a multiparameter X-ray measuring instrument to measure AGD, HVL, and ESAK for Rh and W anode X-ray tubes.
  • Measurements were compared with those from standard ionization dosimeters, revealing low error rates: HVL (5.8%), ESAK (3.3%), and AGD (2.9%).
  • The multiparameter instrument demonstrated simplicity and a significant reduction in measurement time compared to conventional methods.

Impact:

  • The findings suggest that multiparameter X-ray measuring instruments offer a practical and efficient solution for mammography quality control.
  • Adoption of this technology can lead to reduced patient radiation exposure and faster quality assurance processes.
  • This advancement supports enhanced safety and reliability in diagnostic mammography procedures.