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Yoon C, Qi Y, Mestre H, Canavesi C, Marola OJ, Cogliati A, Nedergaard M, Libby RT, Rolland JP. Gabor domain optical coherence microscopy combined with laser scanning confocal fluorescence microscopy. BIOMEDICAL OPTICS EXPRESS 2019; 10:6242-6257. [PMID: 31853397 PMCID: PMC6913392 DOI: 10.1364/boe.10.006242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/26/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
We report on the development of fluorescence Gabor domain optical coherence microscopy (Fluo GD-OCM), a combination of GD-OCM with laser scanning confocal fluorescence microscopy (LSCFM) for synchronous micro-structural and fluorescence imaging. The dynamic focusing capability of GD-OCM provided the adaptive illumination environment for both modalities without any mechanical movement. Using Fluo GD-OCM, we imaged ex vivo DsRed-expressing cells in the brain of a transgenic mouse, as well as Cy3-labeled ganglion cells and Cy3-labeled astrocytes from a mouse retina. The self-registration of images taken by the two different imaging modalities showed the potential for a correlative study of subjects and double identification of the target.
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Affiliation(s)
- Changsik Yoon
- The Institute of Optics, University of Rochester, Wilmot Building, Rochester, New York 14627, USA
| | - Yue Qi
- Department of Biomedical Engineering, University of Rochester, Robert B. Goergen Hall, Rochester, New York 14627, USA
| | - Humberto Mestre
- Center for Translational Neuromedicine, Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Cristina Canavesi
- LighTopTech Corp., 150 Lucius Gordon Dr., Ste 201, West Henrietta, New York 14586, USA
| | - Olivia J. Marola
- Flaum Eye Institute, Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Andrea Cogliati
- LighTopTech Corp., 150 Lucius Gordon Dr., Ste 201, West Henrietta, New York 14586, USA
| | - Maiken Nedergaard
- Center for Translational Neuromedicine, Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Richard T. Libby
- Flaum Eye Institute, Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Jannick P. Rolland
- The Institute of Optics, University of Rochester, Wilmot Building, Rochester, New York 14627, USA
- Department of Biomedical Engineering, University of Rochester, Robert B. Goergen Hall, Rochester, New York 14627, USA
- LighTopTech Corp., 150 Lucius Gordon Dr., Ste 201, West Henrietta, New York 14586, USA
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Zhang P, Manna SK, Miller EB, Jian Y, Meleppat RK, Sarunic MV, Pugh EN, Zawadzki RJ. Aperture phase modulation with adaptive optics: a novel approach for speckle reduction and structure extraction in optical coherence tomography. BIOMEDICAL OPTICS EXPRESS 2019; 10:552-570. [PMID: 30800499 PMCID: PMC6377907 DOI: 10.1364/boe.10.000552] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/19/2018] [Accepted: 12/19/2018] [Indexed: 05/03/2023]
Abstract
Speckle is an inevitable consequence of the use of coherent light in imaging and acts as noise that corrupts image formation in most applications. Optical coherence tomographic imaging, as a technique employing coherence time gating, suffers from speckle. We present here a novel method of suppressing speckle noise intrinsically compatible with adaptive optics (AO) for confocal coherent imaging: modulation of the phase in the system pupil aperture with a segmented deformable mirror (DM) to introduce minor perturbations in the point spread function. This approach creates uncorrelated speckle patterns in a series of images, enabling averaging to suppress speckle noise while maintaining structural detail. A method is presented that efficiently determines the optimal range of modulation of DM segments relative to their AO-optimized position so that speckle noise is reduced while image resolution and signal strength are preserved. The method is active and independent of sample properties. Its effectiveness and efficiency are quantified and demonstrated by both ex vivo non-biological and in vivo biological applications.
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Affiliation(s)
- Pengfei Zhang
- UC Davis Eye-Pod Small Animal Ocular Imaging Laboratory, Department of Cell Biology and Human Anatomy, University of California Davis, 4320 Tupper Hall, Davis, CA 95616, USA
| | - Suman K Manna
- UC Davis Eye-Pod Small Animal Ocular Imaging Laboratory, Department of Cell Biology and Human Anatomy, University of California Davis, 4320 Tupper Hall, Davis, CA 95616, USA
| | - Eric B Miller
- Center for Neuroscience, 1544 Newton Court, University of California Davis, Davis, CA 95618, USA
| | - Yifan Jian
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Ratheesh K Meleppat
- UC Davis Eye-Pod Small Animal Ocular Imaging Laboratory, Department of Cell Biology and Human Anatomy, University of California Davis, 4320 Tupper Hall, Davis, CA 95616, USA
| | - Marinko V Sarunic
- Simon Fraser University, School of Engineering Science, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Edward N Pugh
- UC Davis Eye-Pod Small Animal Ocular Imaging Laboratory, Department of Cell Biology and Human Anatomy, University of California Davis, 4320 Tupper Hall, Davis, CA 95616, USA
- UC Davis Eye Center, Dept. of Ophthalmology & Vision Science, University of California Davis, 4860 Y Street, Suite 2400, Sacramento, CA 95817, USA
| | - Robert J Zawadzki
- UC Davis Eye-Pod Small Animal Ocular Imaging Laboratory, Department of Cell Biology and Human Anatomy, University of California Davis, 4320 Tupper Hall, Davis, CA 95616, USA
- UC Davis Eye Center, Dept. of Ophthalmology & Vision Science, University of California Davis, 4860 Y Street, Suite 2400, Sacramento, CA 95817, USA
- Vision Science and Advanced Retinal Imaging Laboratory, Dept. of Ophthalmology & Vision Science, University of California Davis, 4860 Y Street, Suite 2400, Sacramento, CA 95817, USA
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Ko ZYG, Mehta K, Jamil M, Yap CH, Chen N. A method to study the hemodynamics of chicken embryo's aortic arches using optical coherence tomography. JOURNAL OF BIOPHOTONICS 2017; 10:353-359. [PMID: 27813365 DOI: 10.1002/jbio.201600119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/31/2016] [Accepted: 09/30/2016] [Indexed: 05/19/2023]
Abstract
Congenital cardiovascular defects are the leading cause of birth defect related death. It has been hypothesized that fluid mechanical forces of embryonic blood flow affect cardiovascular development and play a role in congenital malformations. Studies in small animal embryos can improve our understanding of congenital malformations and can lead to better treatment. We present a feasibility study in which high-resolution optical coherence tomography (OCT) and computational fluid dynamics (CFD) are combined to provide quantitative analysis of the embryonic flow mechanics and the associated anatomy in a small animal model.
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Affiliation(s)
- Zhen Yu Gordon Ko
- Department of Biomedical Engineering, National University of Singapore, Block E4 #04-08, 4 Engineering Drive 3, Singapore, 117583
| | - Kalpesh Mehta
- Department of Biomedical Engineering, National University of Singapore, Block E4 #04-08, 4 Engineering Drive 3, Singapore, 117583
| | - Muhammad Jamil
- Department of Biomedical Engineering, National University of Singapore, Block E4 #04-08, 4 Engineering Drive 3, Singapore, 117583
| | - Choon Hwai Yap
- Department of Biomedical Engineering, National University of Singapore, Block E4 #04-08, 4 Engineering Drive 3, Singapore, 117583
| | - Nanguang Chen
- Department of Biomedical Engineering, National University of Singapore, Block E4 #04-08, 4 Engineering Drive 3, Singapore, 117583
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Imaging single chiral nanoparticles in turbid media using circular-polarization optical coherence microscopy. Sci Rep 2014; 4:4979. [PMID: 24828009 PMCID: PMC4021320 DOI: 10.1038/srep04979] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 04/25/2014] [Indexed: 12/23/2022] Open
Abstract
Optical coherence tomography (OCT) is a widely used structural imaging method. However, it has limited use in molecular imaging due to the lack of an effective contrast mechanism. Gold nanoparticles have been widely used as molecular probes for optical microcopy based on Surface Plasmon Resonance (SPR). Unfortunately, the SPR enhanced backscattering from nanoparticles is still relatively weak compared with the background signal from microscopic structures in biological tissues when imaged with OCT. Consequently, it is extremely challenging to perform OCT imaging of conventional nanoparticles in thick tissues with sensitivity comparable to that of fluorescence imaging. We have discovered and demonstrated a novel approach towards remarkable contrast enhancement, which is achieved by the use of a circular-polarization optical coherence microscopy system and 3-dimensional chiral nanostructures as contrast agents. By detecting the circular intensity differential depolarization (CIDD), we successfully acquired high quality images of single chiral nanoparticles underneath a 1-mm-thick tissue -mimicking phantom.
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Mertz J, Potma EO. Introduction to the Novel Techniques in Microscopy feature issue. BIOMEDICAL OPTICS EXPRESS 2013; 4:2207-2208. [PMID: 24156076 PMCID: PMC3799678 DOI: 10.1364/boe.4.002207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 09/06/2013] [Indexed: 06/02/2023]
Abstract
The editors introduce the feature issue on "Novel Techniques in Microscopy", which was the topic of a symposium held on April 14-18, 2013, in Waikoloa Beach, HI. This symposium was part of the Optics in the Life Sciences Congress.
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Affiliation(s)
- Jerome Mertz
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Eric O. Potma
- Beckman Laser Institute, University of California, Irvine, CA 92697, USA
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