Novel multimodal imaging system for high-resolution and high-contrast tissue segmentation based on chemical properties
Accurate and detailed tissue characterization is a central goal in medical diagnostics, often requiring the combination of multiple imaging modalities. This study presents a multimodal imaging system that integrates mid-infrared (MIR) scanning with fluorescence imaging to enhance the chemical specif...
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| Main Authors: | , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
14 October 2025
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| In: |
Sensors
Year: 2025, Volume: 25, Issue: 20, Pages: 1-24 |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s25206342 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.3390/s25206342 Verlag, kostenfrei, Volltext: https://www.mdpi.com/1424-8220/25/20/6342 
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| Author Notes: | Björn van Marwick, Felix Lauer, Felix Wühler, Miriam Rittel, Carmen Wängler, Björn Wängler, Carsten Hopf and Matthias Rädle |
MARC
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| 520 | |a Accurate and detailed tissue characterization is a central goal in medical diagnostics, often requiring the combination of multiple imaging modalities. This study presents a multimodal imaging system that integrates mid-infrared (MIR) scanning with fluorescence imaging to enhance the chemical specificity and spatial resolution in biological samples. A motorized mirror allows rapid switching between MIR and fluorescence modes, enabling efficient, co-registered data acquisition. The MIR modality captures label-free chemical maps based on molecular vibrations, while the fluorescence channel records endogenous autofluorescence for additional biochemical contrast. Applied to mouse brain tissue, the system enabled the clear differentiation of gray matter and white matter, supported by the clustering analysis of spectral features. The addition of autofluorescence imaging further improved anatomical segmentation and revealed fine structural details. In mouse skin, the approach allowed the precise mapping of the layered tissue architecture. These results demonstrate that combining MIR scanning and fluorescence imaging provides complementary, label-free insights into tissue morphology and chemistry. The findings support the utility of this approach as a powerful tool for biomedical research and diagnostic applications, offering a more comprehensive understanding of tissue composition without relying on staining or external markers. | ||
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