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Repeated imaging through a multimode optical fiber using adaptive optics
Multimode optical fibers (MMF) have shown considerable potential for minimally invasive diffraction-limited fluorescence imaging of deep brain regions owing to their small size. They also look to be suitable for imaging across long time periods, with repeated measurements performed within the same b...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Optica Publishing Group
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8884233/ https://www.ncbi.nlm.nih.gov/pubmed/35284159 http://dx.doi.org/10.1364/BOE.448277 |
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author | Schmidt, Carla C. Turcotte, Raphaël Booth, Martin J. Emptage, Nigel J. |
author_facet | Schmidt, Carla C. Turcotte, Raphaël Booth, Martin J. Emptage, Nigel J. |
author_sort | Schmidt, Carla C. |
collection | PubMed |
description | Multimode optical fibers (MMF) have shown considerable potential for minimally invasive diffraction-limited fluorescence imaging of deep brain regions owing to their small size. They also look to be suitable for imaging across long time periods, with repeated measurements performed within the same brain region, which is useful to assess the role of synapses in normal brain function and neurological disease. However, the approach is not without challenge. Prior to imaging, light propagation through a MMF must be characterized in a calibration procedure. Manual repositioning, as required for repeated imaging, renders this calibration invalid. In this study, we provide a two-step solution to the problem consisting of (1) a custom headplate enabling precise reinsertion of the MMF implant achieving low-quality focusing and (2) sensorless adaptive optics to correct translational shifts in the MMF position enabling generation of high-quality imaging foci. We show that this approach achieves fluorescence imaging after repeated removal and reinsertion of a MMF. |
format | Online Article Text |
id | pubmed-8884233 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Optica Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-88842332022-03-11 Repeated imaging through a multimode optical fiber using adaptive optics Schmidt, Carla C. Turcotte, Raphaël Booth, Martin J. Emptage, Nigel J. Biomed Opt Express Article Multimode optical fibers (MMF) have shown considerable potential for minimally invasive diffraction-limited fluorescence imaging of deep brain regions owing to their small size. They also look to be suitable for imaging across long time periods, with repeated measurements performed within the same brain region, which is useful to assess the role of synapses in normal brain function and neurological disease. However, the approach is not without challenge. Prior to imaging, light propagation through a MMF must be characterized in a calibration procedure. Manual repositioning, as required for repeated imaging, renders this calibration invalid. In this study, we provide a two-step solution to the problem consisting of (1) a custom headplate enabling precise reinsertion of the MMF implant achieving low-quality focusing and (2) sensorless adaptive optics to correct translational shifts in the MMF position enabling generation of high-quality imaging foci. We show that this approach achieves fluorescence imaging after repeated removal and reinsertion of a MMF. Optica Publishing Group 2022-01-10 /pmc/articles/PMC8884233/ /pubmed/35284159 http://dx.doi.org/10.1364/BOE.448277 Text en Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Schmidt, Carla C. Turcotte, Raphaël Booth, Martin J. Emptage, Nigel J. Repeated imaging through a multimode optical fiber using adaptive optics |
title | Repeated imaging through a multimode optical fiber using adaptive optics |
title_full | Repeated imaging through a multimode optical fiber using adaptive optics |
title_fullStr | Repeated imaging through a multimode optical fiber using adaptive optics |
title_full_unstemmed | Repeated imaging through a multimode optical fiber using adaptive optics |
title_short | Repeated imaging through a multimode optical fiber using adaptive optics |
title_sort | repeated imaging through a multimode optical fiber using adaptive optics |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8884233/ https://www.ncbi.nlm.nih.gov/pubmed/35284159 http://dx.doi.org/10.1364/BOE.448277 |
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