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9 August 2023 3D visualization of multicellular tumor spheroids in fluorescence microscopy
Julia R. Alonso
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Proceedings Volume 12630, Advances in Microscopic Imaging IV; 1263011 (2023) https://doi.org/10.1117/12.2670441
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany
Abstract
Imaging of multicellular tumor spheroids (MCTS) is of high relevance since MCTS recapitulate tumor environment characteristics more closely compared to 2D cell cultures. In particular, fluorescence microscopy imaging after DNA staining by DAPI allows observation of cell nuclei in MCTS. Limited depth-of-field (DOF) however affects the capability of visualizing the whole sample all-in-focus in a single shot. In order to overcome limited DOF while achieving 3D visualization of MCTS a custom-built fluorescence microscope including an electrically focus-tunable lens was developed. Once the multifocus sequence is acquired, image registration is applied in order to correct for changes in the field of view between images of the stack. Then post-processing in Fourier domain of the z-stack allows for DoF extension along with synthesis of novel viewpoints from which a 3D visualization of the MCTS can be reconstructed.
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Julia R. Alonso "3D visualization of multicellular tumor spheroids in fluorescence microscopy", Proc. SPIE 12630, Advances in Microscopic Imaging IV, 1263011 (9 August 2023); https://doi.org/10.1117/12.2670441
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KEYWORDS
3D visualizations
Tumors
Depth of field
Fluorescence microscopy
Fourier transforms
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