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Related Experiment Video

Updated: May 26, 2026

Construction of a Preclinical Multimodality Phantom Using Tissue-mimicking Materials for Quality Assurance in Tumor Size Measurement
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A new mammography dosimetric phantom.

C D Almeida1, C M C Coutinho, B M Dantas

  • 1Instituto de Radioproteção e Dosimetria, CNEN, Rio de Janeiro, Brazil. claudio@ird.gov.br

Radiation Protection Dosimetry
|January 7, 2012
PubMed
Summary
This summary is machine-generated.

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New breast phantoms (BTE phantoms) mimic breast tissues for accurate mammography dose measurements. These phantoms can optimize radiation exposure, improving patient safety during mammography screenings.

Area of Science:

  • Medical Physics
  • Radiological Sciences
  • Biomedical Engineering

Background:

  • Breast phantoms are crucial for simulating human breast tissues in mammography.
  • Accurate simulation requires materials that match X-ray attenuation and density properties of adipose and glandular tissues.
  • Current phantoms, like polymethyl methacrylate, may not sufficiently represent diverse breast compositions.

Purpose of the Study:

  • To produce and characterize breast tissue-equivalent phantoms (BTE phantoms) with varying compositions and thicknesses.
  • To evaluate the suitability of these BTE phantoms for measuring incident air kerma (K(i)) and mean glandular dose (D(G)).
  • To compare the performance of BTE phantoms with existing polymethyl methacrylate phantoms for mammography dose optimization.

Main Methods:

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Multimodal 3D Printing of Phantoms to Simulate Biological Tissue
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Last Updated: May 26, 2026

Construction of a Preclinical Multimodality Phantom Using Tissue-mimicking Materials for Quality Assurance in Tumor Size Measurement
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Published on: July 29, 2013

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  • Fabrication of semicircular BTE phantoms using tissue-equivalent materials.
  • Measurement of linear X-ray attenuation coefficients at 17 keV for adipose and glandular tissue-equivalent materials.
  • Determination and comparison of elemental composition (carbon, nitrogen, hydrogen) and densities with literature values.

Main Results:

  • Linear attenuation coefficients of 0.724 cm⁻¹ for adipose and 0.923 cm⁻¹ for glandular tissue-equivalent materials were determined.
  • These measured values align with existing data in the scientific literature.
  • The elemental composition and densities of the fabricated materials were consistent with tissue-equivalent properties.

Conclusions:

  • The developed BTE phantoms accurately simulate the X-ray attenuation properties of human breast tissues.
  • BTE phantoms are recommended over polymethyl methacrylate phantoms for selecting mammography exposure parameters.
  • These phantoms can aid in optimizing radiation doses for patients with breast glandularities ranging from 0% to 50%.