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Quantitation of Protein Expression and Co-localization Using Multiplexed Immuno-histochemical Staining and Multispectral Imaging
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A new immunohistochemical ER/PR image analysis system: a multisite performance study.

Aziza Nassar1, Cynthia Cohen, Sally S Agersborg

  • 1Department of Pathology, Mayo Clinic, Rochester, MN, USA. nassar.aziza@mayo.edu

Applied Immunohistochemistry & Molecular Morphology : AIMM
|January 11, 2011
PubMed
Summary
This summary is machine-generated.

Aperio's digital image analysis (IA) for immunohistochemistry (IHC) shows substantial equivalence to manual microscopy (MM) for scoring estrogen receptor (ER) and progesterone receptor (PR) in breast cancer. This validates the IA solution for clinical use.

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Area of Science:

  • Digital Pathology
  • Computational Pathology
  • Biomarker Analysis

Background:

  • Immunohistochemistry (IHC) is crucial for cancer diagnosis and treatment.
  • Manual microscopy (MM) is the traditional method for scoring IHC slides.
  • Digital pathology offers automated image analysis (IA) solutions for IHC.

Purpose of the Study:

  • To assess the performance of Aperio's IHC IA solution for ER and PR.
  • To demonstrate substantial equivalence between IA and MM for ER/PR scoring.
  • To validate a digital pathology solution for clinical application.

Main Methods:

  • A multisite study involving 260 breast tissue specimens.
  • Scoring of ER/PR by both MM and IA for positive nuclei percentage and staining intensity.
  • Blinded reads by pathologists using both methods.

Main Results:

  • Aperio's IA achieved comparable or higher percent agreement than MM for ER and PR.
  • IA demonstrated strong performance in both positive nuclei percentage and intensity scoring.
  • Results support the substantial equivalence of IA to MM.

Conclusions:

  • Aperio's digital IHC IA solution for ER/PR is substantially equivalent to MM scoring.
  • The validated IA solution can be integrated into clinical practice.
  • Digital pathology enhances the reliability and efficiency of IHC analysis.