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Chen X, Ma Z, Wang C, Cui J, Fan F, Gao X, Zhu J. Motion Artifact Correction for OCT Microvascular Images Based on Image Feature Matching. JOURNAL OF BIOPHOTONICS 2024:e202400198. [PMID: 39198156 DOI: 10.1002/jbio.202400198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/11/2024] [Accepted: 07/27/2024] [Indexed: 09/01/2024]
Abstract
Optical coherence tomography angiography (OCTA), a functional extension of optical coherence tomography (OCT), is widely employed for high-resolution imaging of microvascular networks. However, due to the relatively low scan rate of OCT, the artifacts caused by the involuntary bulk motion of tissues severely impact the visualization of microvascular networks. This study proposes a fast motion correction method based on image feature matching for OCT microvascular images. First, the rigid motion-related mismatch between B-scans is compensated through the image feature matching based on the improved oriented FAST and rotated BRIEF algorithm. Then, the axial motion within A-scan lines in each B-scan image is corrected according to the displacement deviation between the detected boundaries achieved by the Scharr operator in a non-rigid transformation manner. Finally, an optimized intensity-based Doppler variance algorithm is developed to enhance the robustness of the OCTA imaging. The experimental results demonstrate the effectiveness of the method.
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Affiliation(s)
- Xudong Chen
- Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
| | - Zongqing Ma
- Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
| | - Chongyang Wang
- Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
| | - Jiaqi Cui
- Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
| | - Fan Fan
- Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
| | - Xinxiao Gao
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jiang Zhu
- Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing, China
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2
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Bonnin S, Gocho K, Norberg N, Gofas E, Lejoyeux R, Chaumette C, Grieve K, Couturier A, Paques M. Spatially resolved imaging of human macular capillaries using adaptive optics-enhanced optical coherence tomography angiography. Sci Rep 2024; 14:15540. [PMID: 38969668 PMCID: PMC11226425 DOI: 10.1038/s41598-024-65534-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 06/19/2024] [Indexed: 07/07/2024] Open
Abstract
Documenting the organization of the retinal capillaries is of importance to understand the visual consequences of vascular diseases which may differentially affect the microvascular layers. Here we detailed the spatial organization of the macular capillaries in ten healthy human subjects using a prototypic adaptive optics-enhanced optical coherence tomography angiography (AO-OCTA) system. Within the central 6° × 6°, the radial peripapillary capillaries and the superficial, intermediate and deep vascular plexuses (SVP, IVP and DVP, respectively) were consistently resolved. In 8 out of the 10 eyes, the capillary segments composing the perifoveal arcade (PFA) were perfused only by the SVP, while drainage of the PFA showed more variability, comprising a case in which the PFA was drained by the DVP. Around the center, a distinct central avascular zone could be documented for each layer in 7 of the 10 cases; in three eyes, the IVP and SVP merged tangentially around the center. In all eyes, the foveal avascular zone was larger in the DVP than in the SVP and IVP. In one eye with incomplete separation of the inner foveal layers, there was continuity of both the SVP and the IVP; a central avascular zone was only present in the DVP. The diversity of perfusion and drainage patterns supported a connectivity scheme combining parallel and serial organizations, the latter being the most commonly observed in perifoveal vessels. Our results thus help to further characterize the diversity of organization patterns of the macular capillaries and to robustly analyze the IVP, which will help to characterize early stages of microvascular diseases.
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Affiliation(s)
- S Bonnin
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
- Rothschild Foundation Hospital, 25-29 Rue Manin, 75019, Paris, France
| | - K Gocho
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
| | - N Norberg
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
- Institut de La Vision, 17 Rue Moreau, 75012, Paris, France
| | - E Gofas
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
- Institut de La Vision, 17 Rue Moreau, 75012, Paris, France
| | - R Lejoyeux
- Rothschild Foundation Hospital, 25-29 Rue Manin, 75019, Paris, France
| | - C Chaumette
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
| | - K Grieve
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
- Institut de La Vision, 17 Rue Moreau, 75012, Paris, France
| | - A Couturier
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France
- Université Paris Cité, Ophthalmology Department, AP-HP, Lariboisière Hospital-Assistance Publique-Hôpitaux de Paris, Paris, France
| | - M Paques
- Paris Eye Imaging Group, Clinical Investigation Center Vision 1423, Quinze-Vingts Hospital, INSERM-DHOS, Sorbonne University, 28 Rue de Charenton, 75012, Paris, France.
- Institut de La Vision, 17 Rue Moreau, 75012, Paris, France.
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Torm MEW, Pircher M, Bonnin S, Johannesen J, Klefter ON, Schmidt MF, Frederiksen JL, Lefaudeux N, Andilla J, Valdes C, Loza-Alvarez P, Brea LS, De Jesus DA, Grieve K, Paques M, Larsen M, Gocho K. Detection of capillary abnormalities in early diabetic retinopathy using scanning laser ophthalmoscopy and optical coherence tomography combined with adaptive optics. Sci Rep 2024; 14:13450. [PMID: 38862584 PMCID: PMC11166634 DOI: 10.1038/s41598-024-63749-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/31/2024] [Indexed: 06/13/2024] Open
Abstract
This study tested if a high-resolution, multi-modal, multi-scale retinal imaging instrument can provide novel information about structural abnormalities in vivo. The study examined 11 patients with very mild to moderate non-proliferative diabetic retinopathy (NPDR) and 10 healthy subjects using fundus photography, optical coherence tomography (OCT), OCT angiography (OCTA), adaptive optics scanning laser ophthalmoscopy (AO-SLO), adaptive optics OCT and OCTA (AO-OCT(A)). Of 21 eyes of 11 patients, 11 had very mild NPDR, 8 had mild NPDR, 2 had moderate NPDR, and 1 had no retinopathy. Using AO-SLO, capillary looping, inflections and dilations were detected in 8 patients with very mild or mild NPDR, and microaneurysms containing hyperreflective granular elements were visible in 9 patients with mild or moderate NPDR. Most of the abnormalities were seen to be perfused in the corresponding OCTA scans while a few capillary loops appeared to be occluded or perfused at a non-detectable flow rate, possibly because of hypoperfusion. In one patient with moderate NPDR, non-perfused capillaries, also called ghost vessels, were identified by alignment of corresponding en face AO-OCT and AO-OCTA images. The combination of multiple non-invasive imaging methods could identify prominent microscopic abnormalities in diabetic retinopathy earlier and more detailed than conventional fundus imaging devices.
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Affiliation(s)
- Marie Elise Wistrup Torm
- Department of Ophthalmology, Center for Research in Eye Diseases, Rigshospitalet, Section 37, Valdemar Hansens Vej 13, 2600, Glostrup, Denmark.
- Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen N, Denmark.
| | - Michael Pircher
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Sophie Bonnin
- INSERM-DGOS CIC 1423, CHNO des Quinze-Vingts, 28 Rue de Charenton, 75012, Paris, France
- INSERM, CNRS, Institut de La Vision, Sorbonne Université, 17 Rue Moreau, 75012, Paris, France
- Foundation Rothschild Hospital, 25-29, Rue Manin, 75019, Paris, France
| | - Jesper Johannesen
- Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen N, Denmark
- Department of Pediatrics, Herlev-Gentofte Hospital, Borgmester Ib Juuls Vej 25C, Herlev, Denmark
- Department of Clinical Research, Steno Diabetes Center Copenhagen, Borgmester Ib Juuls Vej 83, Herlev, Denmark
| | - Oliver Niels Klefter
- Department of Ophthalmology, Center for Research in Eye Diseases, Rigshospitalet, Section 37, Valdemar Hansens Vej 13, 2600, Glostrup, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen N, Denmark
| | - Mathias Falck Schmidt
- Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen N, Denmark
- Department of Neurology, Clinic of Optic Neuritis, The Danish Multiple Sclerosis Center (DMSC), Rigshospitalet, Valdemar Hansens Vej 13, Glostrup, Denmark
| | - Jette Lautrup Frederiksen
- Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen N, Denmark
- Department of Neurology, Clinic of Optic Neuritis, The Danish Multiple Sclerosis Center (DMSC), Rigshospitalet, Valdemar Hansens Vej 13, Glostrup, Denmark
| | | | - Jordi Andilla
- The Barcelona Institute of Science and Technology, ICFO-Institut de Ciencies Fotoniques, 08860, Castelldefels, Barcelona, Spain
| | - Claudia Valdes
- The Barcelona Institute of Science and Technology, ICFO-Institut de Ciencies Fotoniques, 08860, Castelldefels, Barcelona, Spain
| | - Pablo Loza-Alvarez
- The Barcelona Institute of Science and Technology, ICFO-Institut de Ciencies Fotoniques, 08860, Castelldefels, Barcelona, Spain
| | - Luisa Sanchez Brea
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, Dr. Molewaterplein 40, Rotterdam, The Netherlands
- Department of Ophthalmology, Erasmus Medical Center, Dr. Molewaterplein 40, Rotterdam, The Netherlands
- The Rotterdam Eye Hospital, The Rotterdam Ophthalmic Institute, Schiedamse Vest 160, Rotterdam, The Netherlands
| | - Danilo Andrade De Jesus
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, Dr. Molewaterplein 40, Rotterdam, The Netherlands
- Department of Ophthalmology, Erasmus Medical Center, Dr. Molewaterplein 40, Rotterdam, The Netherlands
- The Rotterdam Eye Hospital, The Rotterdam Ophthalmic Institute, Schiedamse Vest 160, Rotterdam, The Netherlands
| | - Kate Grieve
- INSERM-DGOS CIC 1423, CHNO des Quinze-Vingts, 28 Rue de Charenton, 75012, Paris, France
- INSERM, CNRS, Institut de La Vision, Sorbonne Université, 17 Rue Moreau, 75012, Paris, France
| | - Michel Paques
- INSERM-DGOS CIC 1423, CHNO des Quinze-Vingts, 28 Rue de Charenton, 75012, Paris, France
- INSERM, CNRS, Institut de La Vision, Sorbonne Université, 17 Rue Moreau, 75012, Paris, France
| | - Michael Larsen
- Department of Ophthalmology, Center for Research in Eye Diseases, Rigshospitalet, Section 37, Valdemar Hansens Vej 13, 2600, Glostrup, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, Copenhagen N, Denmark
| | - Kiyoko Gocho
- INSERM-DGOS CIC 1423, CHNO des Quinze-Vingts, 28 Rue de Charenton, 75012, Paris, France
- INSERM, CNRS, Institut de La Vision, Sorbonne Université, 17 Rue Moreau, 75012, Paris, France
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Wang XN, Li S, Cai X, Li T, Long D, Wu Q. Imaging Artifacts and Quality Evaluation with Ultrawide-Field Swept-Source OCTA in Diabetic Retinopathy. Curr Eye Res 2024; 49:410-416. [PMID: 38116796 DOI: 10.1080/02713683.2023.2296362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE To evaluate the prevalence and types of artifacts in ultrawide-field swept-source optical coherence tomography angiography (SS-OCTA) scans of diabetic retinopathy (DR) patients. METHODS This study was a prospective, observational study conducted from May 2022 to October 2022. Participants comprised individuals with proliferative diabetic retinopathy (PDR), nonproliferative diabetic retinopathy (NPDR), no diabetic retinopathy, and healthy controls. SS-OCTA imaging was performed, and a 5-scan composite with a larger field of view (23.5 mm × 17.5 mm) was captured using built-in software. Two experienced ophthalmologists analyzed the images independently, and the image quality and artifact prevalence were recorded and analyzed. RESULTS The study included 70 eyes (16 with PDR, 24 with NPDR, 12 eyes of diabetic patients without DR, and 18 healthy eyes) in 70 subjects. Imaging artifacts were observed in a high percentage of eyes, with 98.57% of eyes presenting at least one type of artifact. A significant proportion of eyes (58.57%) exhibited a severe degree of artifacts. The most prevalent artifacts were loss of signal in 63 eyes (90%) and displacement artifact and masking artifact in 43 eyes (61.4%). Patients with more severe stages of DR had higher artifact scores (p < 0.05). Multivariate regression analysis indicated that DR severity was the most important factor influencing artifact scores (p < 0.05). CONCLUSIONS In OCTA photos, various artifacts arise at different frequencies. It is crucial to qualitatively evaluate the images to ensure their quality. The results demonstrate that DR severity has a significant correlation with artifact scores.
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Affiliation(s)
- Xiang-Ning Wang
- Department of Ophthalmology, Shanghai Sixth People's Hospital, Shanghai, China
| | - Shuting Li
- Department of Ophthalmology, The First People's Hospital of Changzhou, Changzhou, China
| | - Xuan Cai
- Department of Ophthalmology, Shanghai Sixth People's Hospital, Shanghai, China
| | - Tingting Li
- Department of Ophthalmology, Shanghai Sixth People's Hospital, Shanghai, China
| | - Da Long
- Department of Ophthalmology, Shanghai Sixth People's Hospital, Shanghai, China
| | - Qiang Wu
- Department of Ophthalmology, Shanghai Sixth People's Hospital, Shanghai, China
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5
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Williams DR, Burns SA, Miller DT, Roorda A. Evolution of adaptive optics retinal imaging [Invited]. BIOMEDICAL OPTICS EXPRESS 2023; 14:1307-1338. [PMID: 36950228 PMCID: PMC10026580 DOI: 10.1364/boe.485371] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/02/2023] [Indexed: 05/02/2023]
Abstract
This review describes the progress that has been achieved since adaptive optics (AO) was incorporated into the ophthalmoscope a quarter of a century ago, transforming our ability to image the retina at a cellular spatial scale inside the living eye. The review starts with a comprehensive tabulation of AO papers in the field and then describes the technological advances that have occurred, notably through combining AO with other imaging modalities including confocal, fluorescence, phase contrast, and optical coherence tomography. These advances have made possible many scientific discoveries from the first maps of the topography of the trichromatic cone mosaic to exquisitely sensitive measures of optical and structural changes in photoreceptors in response to light. The future evolution of this technology is poised to offer an increasing array of tools to measure and monitor in vivo retinal structure and function with improved resolution and control.
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Affiliation(s)
- David R. Williams
- The Institute of Optics and the Center for
Visual Science, University of Rochester,
Rochester NY, USA
| | - Stephen A. Burns
- School of Optometry, Indiana
University at Bloomington, Bloomington IN, USA
| | - Donald T. Miller
- School of Optometry, Indiana
University at Bloomington, Bloomington IN, USA
| | - Austin Roorda
- Herbert Wertheim School of Optometry and
Vision Science, University of California at Berkeley, Berkeley CA, USA
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6
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Morgan JIW, Chui TYP, Grieve K. Twenty-five years of clinical applications using adaptive optics ophthalmoscopy [Invited]. BIOMEDICAL OPTICS EXPRESS 2023; 14:387-428. [PMID: 36698659 PMCID: PMC9841996 DOI: 10.1364/boe.472274] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 05/02/2023]
Abstract
Twenty-five years ago, adaptive optics (AO) was combined with fundus photography, thereby initiating a new era in the field of ophthalmic imaging. Since that time, clinical applications of AO ophthalmoscopy to investigate visual system structure and function in both health and disease abound. To date, AO ophthalmoscopy has enabled visualization of most cell types in the retina, offered insight into retinal and systemic disease pathogenesis, and been integrated into clinical trials. This article reviews clinical applications of AO ophthalmoscopy and addresses remaining challenges for AO ophthalmoscopy to become fully integrated into standard ophthalmic care.
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Affiliation(s)
- Jessica I. W. Morgan
- Scheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia, PA 19104, USA
- Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA
- Contributed equally
| | - Toco Y. P. Chui
- Department of Ophthalmology, The New York Eye and Ear Infirmary of Mount Sinai, New York, NY 10003, USA
- Contributed equally
| | - Kate Grieve
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, and CHNO des Quinze-Vingts, INSERM-DGOS CIC 1423, 28 rue de Charenton, F-75012 Paris, France
- Contributed equally
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Wysmolek PM, Kiessler FD, Salbaum KA, Shelton ER, Sonntag SM, Serwane F. A minimal-complexity light-sheet microscope maps network activity in 3D neuronal systems. Sci Rep 2022; 12:20420. [PMID: 36443413 PMCID: PMC9705530 DOI: 10.1038/s41598-022-24350-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/14/2022] [Indexed: 11/29/2022] Open
Abstract
In vitro systems mimicking brain regions, brain organoids, are revolutionizing the neuroscience field. However, characterization of their electrical activity has remained a challenge as it requires readout at millisecond timescale in 3D at single-neuron resolution. While custom-built microscopes used with genetically encoded sensors are now opening this door, a full 3D characterization of organoid neural activity has not been performed yet, limited by the combined complexity of the optical and the biological system. Here, we introduce an accessible minimalistic light-sheet microscope to the neuroscience community. Designed as an add-on to a standard inverted microscope it can be assembled within one day. In contrast to existing simplistic setups, our platform is suited to record volumetric calcium traces. We successfully extracted 4D calcium traces at high temporal resolution by using a lightweight piezo stage to allow for 5 Hz volumetric scanning combined with a processing pipeline for true 3D neuronal trace segmentation. As a proof of principle, we created a 3D connectivity map of a stem cell derived neuron spheroid by imaging its activity. Our fast, low complexity setup empowers researchers to study the formation of neuronal networks in vitro for fundamental and neurodegeneration research.
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Affiliation(s)
- Paulina M. Wysmolek
- grid.414703.50000 0001 2202 0959Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Filippo D. Kiessler
- grid.5252.00000 0004 1936 973XFaculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Katja A. Salbaum
- grid.5252.00000 0004 1936 973XFaculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany ,Graduate School of Systemic Neuroscience (GSN), Munich, Germany
| | - Elijah R. Shelton
- grid.5252.00000 0004 1936 973XFaculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Selina M. Sonntag
- grid.5252.00000 0004 1936 973XFaculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Friedhelm Serwane
- grid.5252.00000 0004 1936 973XFaculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany ,Graduate School of Systemic Neuroscience (GSN), Munich, Germany ,grid.452617.3Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
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