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Updated: Jul 16, 2025
A Rapid Method for Multispectral Fluorescence Imaging of Frozen Tissue Sections
Published on: March 30, 2020
Dual-modality imaging of immunofluorescence and imaging mass cytometry for whole-slide imaging and accurate
Eun Na Kim1, Phyllis Zixuan Chen2, Dario Bressan3
1Department of Biomedical Engineering and Computational Biology Program, Oregon Health and Science University, Portland, OR, USA; Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
Insights
This study introduces a dual-modality imaging method combining high-resolution immunofluorescence and imaging mass cytometry. This approach enhances spatial phenotyping by integrating small fields of view into whole-slide images for detailed single-cell analysis.
Area of Science:
- Biomedical Imaging
- Computational Pathology
- Single-Cell Analysis
Background:
- Imaging mass cytometry (IMC) enables high-plex spatial phenotyping but is limited by small field of view (FOV) and low resolution.
- Current IMC limitations hinder comprehensive single-cell analysis and spatial profiling of tissue samples.
Purpose of the Study:
- To develop a dual-modality imaging method integrating high-resolution immunofluorescence (IF) with IMC.
- To overcome IMC's resolution and FOV limitations for improved spatial phenotyping.
- To enable accurate single-cell segmentation and feature extraction for downstream analysis.
Main Methods:
- A computational pipeline was developed to integrate high-resolution IF whole-slide images (WSIs) with IMC data.
- IF WSIs served as spatial references to reconstruct high-dimensional IMC WSIs.
- High-resolution IF images facilitated precise single-cell segmentation for robust feature extraction.
Main Results:
- The dual-modality method successfully reconstructed WSI IMC images from small FOVs.
- Accurate single-cell segmentation was achieved using high-resolution IF data.
- The method was applied to esophageal adenocarcinoma, revealing its single-cell pathology landscape.
Conclusions:
- The developed dual-modality imaging strategy significantly enhances spatial phenotyping capabilities.
- This approach provides a more comprehensive understanding of tissue architecture and cellular interactions.
- It offers a practical solution for integrating high-dimensional IMC data with WSI analysis.
Abstract:
Imaging mass cytometry (IMC) is a powerful technique capable of detecting over 30 markers on a single slide. It has been increasingly used for single-cell-based spatial phenotyping in a wide range of samples. However, it only acquires a rectangle field of view (FOV) with a relatively small size and low image resolution, which hinders downstream analysis. Here, we reported a highly practical dual-modality imaging method that combines high-resolution immunofluorescence (IF) and high-dimensional IMC on the same tissue slide. Our computational pipeline uses the whole-slide image (WSI) of IF as a spatial reference and integrates small-FOV IMC into a WSI of IMC. The high-resolution IF images enable accurate single-cell segmentation to extract robust high-dimensional IMC features for downstream analysis. We applied this method in esophageal adenocarcinoma of different stages, identified the single-cell pathology landscape via reconstruction of WSI IMC images, and demonstrated the advantage of the dual-modality imaging strategy.
