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Related Experiment Video

Updated: Jul 16, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
13:44

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Breast cancer diagnosis using scattered X-rays.

R A Lewis1, K D Rogers, C J Hall

  • 1Daresbury Laboratory, Warrington WA4 4AD, UK.

Journal of Synchrotron Radiation
|April 13, 2006
PubMed
Summary

Small-angle X-ray diffraction reveals distinct collagen structural differences in breast tissues. Malignant tissues exhibit significantly lower structural order compared to benign and normal tissues, offering potential for cancer diagnosis.

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Area of Science:

  • Biophysics
  • Materials Science
  • Oncology

Background:

  • Collagen fibrillar structure is crucial in tissue biomechanics.
  • Alterations in collagen organization are associated with various pathologies, including cancer.
  • Small-angle X-ray diffraction (SAXD) is a powerful technique for probing nanoscale structures.

Purpose of the Study:

  • To investigate collagen fibrillar structure in breast tissues using SAXD.
  • To identify and quantify differences in collagen structure between normal, benign, and malignant breast tissues.
  • To assess the potential of SAXD-derived structural parameters for breast cancer diagnosis.

Main Methods:

  • Collected SAXD data from 99 core-cut breast tissue specimens with diverse pathologies.
  • Analyzed diffraction patterns to identify Bessel functions and Bragg maxima related to collagen.
  • Indexed Bragg maxima to a 649 Å lattice and quantified intensity and D-spacing variations.
  • Compared structural parameters between malignant, benign, and normal tissue groups.

Main Results:

  • Identified characteristic Bragg maxima from the fibrillar collagen structure.
  • Demonstrated systematic differences in collagen intensities and D-spacings across tissue groups.
  • Quantified significantly lower structural order in collagen within malignant breast tissues compared to controls.
  • Observed variations in structural order correlated with disease state.

Conclusions:

  • SAXD can detect and quantify subtle changes in collagen fibrillar organization in breast tissue.
  • Reduced structural order in collagen is a hallmark of malignant breast tissue.
  • These findings suggest SAXD-based collagen structural analysis holds promise as a diagnostic tool for breast cancer.