Quantitative In Vivo Imaging of Breast Tumor Extracellular Matrix

Abstract

SHG intensity combined with the F/B ratio provides unique measures of the local density of ordered collagen, as well as the characteristic length scale of this ordering. In order to fully implement F/B ratio measurements to understand the dynamic ordering of collagen in living tumors, we must be able to measure this property in vivo, in intact tissue, which stops us from using a forwards detector. In this annual report, we described ongoing work developing optical methods to quantify the breast tumor collagen SHG F/B scattering ratio in intact tumors in vivo, i.e. without a forwards detector. In future studies this information will be used to determine how manipulation of gene expression by tumor associated macrophages affects collagen ordering, and to determine if SHG measurement of collagen ordering provides a clinically useful measure of metastatic ability.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2010
Accession Number
ADA541944

Entities

People

  • Xiaoxing Han

Organizations

  • University of Rochester

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Backscattering
  • Biomedical Engineering
  • Biomedical Research
  • Breast Cancer
  • Cellular Structures
  • Detection
  • Detectors
  • Health Services
  • Intensity
  • Measurement
  • Neoplasms
  • Optical Properties
  • Optics
  • Refractive Index
  • Scattering
  • Tendons
  • Tissues

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Oncology (Cancer Research).
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.