Preliminary radiomic texture analysis of high-channel fluorescence confocal images of triple-negative breast cancer biopsies

Madeleine S. Durkee; Bradie M. Ferguson; Rebecca Abraham; Li Lan; Hui Li; Marcus R. Clark; Maryellen L. Giger

doi:10.1117/12.2549755

16 March 2020 Preliminary radiomic texture analysis of high-channel fluorescence confocal images of triple-negative breast cancer biopsies

Madeleine S. Durkee, Bradie M. Ferguson, Rebecca Abraham, Li Lan, Hui Li, Marcus R. Clark, Maryellen L. Giger

Author Affiliations +

Proceedings Volume 11320, Medical Imaging 2020: Digital Pathology; 1132013 (2020) https://doi.org/10.1117/12.2549755
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States

Abstract

Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer characterized by a high level of inflammation. In this work, we present a computational method for assessing immune activity across many populations of immune cells. For this analysis, we have a dataset of 18 TNBC biopsies, each stained with a ‘strip-and-reprobe’ approach consisting of multiple rounds of staining and imaging the tissue. Each sample is stained with 8 separate antibody panels, resulting in ~20 different stains per sample, plus tissue autofluorescence images. Biopsy sections are imaged across a ~4mm x 5mm area on a Caliber ID confocal microscope with a pixel size of 221 nm, resulting in image composites of ~27,000x27,000x20 pixels per sample. Using radiomic texture analysis, we have analyzed a subset of these images to determine which texture features are predictive of inflammation. From 3 of these samples, we have selected inflamed and uninflamed regions of interest (ROIs) for three lymphocyte markers: 1) CD4, 2) CD3, and 3) CD8. We have computed 20 texture features, specifically gray level co-occurrence matrix features, for each of these 42 ROIs and their corresponding tissue autofluorescence images. From this analysis, we have found multiple features that successfully differentiate inflamed tissue from uninflamed tissue. These features will be calculated across the full dataset to analyze the overall TNBC immune architecture of these samples as diffuse or compartmentalized, and which cell populations tend to coaggregate.

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Madeleine S. Durkee, Bradie M. Ferguson, Rebecca Abraham, Li Lan, Hui Li, Marcus R. Clark, and Maryellen L. Giger "Preliminary radiomic texture analysis of high-channel fluorescence confocal images of triple-negative breast cancer biopsies", Proc. SPIE 11320, Medical Imaging 2020: Digital Pathology, 1132013 (16 March 2020); https://doi.org/10.1117/12.2549755

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KEYWORDS

Tissues

Biopsy

Breast cancer

Inflammation

Confocal microscopy

Image classification

Statistical analysis

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