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A multiscale Mueller polarimetry module for a stereo zoom microscope.

Adam Gribble1, Michael A Pinkert2,3,4, Jared Westreich1

  • 11Department of Medical Biophysics, University of Toronto, Toronto, Canada.

Biomedical Engineering Letters
|August 29, 2019
PubMed
Summary

A new multiscale Mueller polarimetry module enhances microscope accessibility for label-free tissue pathology imaging. This low-cost system improves efficiency by enabling variable resolution and field of view, aiding region identification in cancer samples.

Keywords:
Label-free imagingModuleMueller matrix polarimetryMultiscalePathologyStereo zoom microscope

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Area of Science:

  • Biomedical Optics
  • Quantitative Imaging
  • Pathology

Background:

  • Mueller polarimetry offers label-free tissue visualization without extensive sample preparation.
  • Current polarimetry systems face challenges with accessibility and prolonged imaging durations.
  • There is a need for improved, user-friendly polarimetry tools in biomedical research.

Purpose of the Study:

  • To design and evaluate a multiscale-polarimetry module for commercial stereo zoom microscopes.
  • To enhance end-user accessibility and reduce imaging times for polarimetric analysis of tissues.
  • To demonstrate the module's utility in preclinical and human breast cancer sample imaging.

Main Methods:

  • Development of a low-cost, easily attachable multiscale-polarimetry module.
  • Coupling the module to a commercially available stereo zoom microscope.
  • Acquisition of polarimetry images from murine breast cancer models and human breast cancer tissues.

Main Results:

  • The module provides variable resolution and field of view capabilities.
  • The system facilitates efficient region of interest identification through a multiscale scanning approach.
  • Preliminary imaging demonstrates potential for pathological assessment in breast cancer samples.

Conclusions:

  • The developed multiscale-polarimetry module enhances microscope usability for pathology.
  • The system shows promise for faster, more accessible label-free tissue analysis.
  • Further research is needed to fully elucidate pathological feature representation across zoom scales in Mueller polarimetry.