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Updated: Jul 16, 2026
13:44
Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
Published on: August 30, 2013
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
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.
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.
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