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Imaging Lamina Cribrosa with Spectral Domain Ocular Coherence Tomography: An overview

Laxmikanth Kankipati, Christopher A. Girkin
2012 Journal of Clinical & Experimental Ophthalmology  
Glaucomatous optic neuropathy is believed to start in the optic nerve head, the lamina cribrosa in particular, hence there is critical need for approach to imaging this region of the eye in-vivo. • Understanding  ...  the complex interplay of intraocular pressure changes and lamina cribrosa is vital to our understanding of the disease progression.  ...  • With newer imaging techniques, namely enhanced depth spectral domain ocular coherence tomography, it is now possible to image the anterior lamina and thus study its characteristics with respect to glaucomatous  ... 
doi:10.4172/2155-9570.s4-003 fatcat:i57lkpdz2fbc3bhlcmukum4yoe

Digital Image Analysis of the Angle and Optic Nerve: A Simple, Fast, and Low-Cost Method for Glaucoma Assessment

Greg Russell, Silvia N. W. Hertzberg, Natalia Anisimova, Natalia Gavrilova, Beáta É. Petrovski, Goran Petrovski, Barbara Cvenkel
2020 Journal of Ophthalmology  
Images from glaucoma and fundus assessment were used in this study, including color fundus photographs, standard optic nerve optical coherence tomography (OCT), and digital slit-lamp images of the angle  ...  To devise a simple, fast, and low-cost method for glaucoma assessment using digital image analysis of the angle and optic nerve in human subjects. Methods.  ...  Methods Images from glaucoma and fundus assessment were used in this study, including freely available/online color fundus photographs, standard optic nerve optical coherence tomography (OCT), and additional  ... 
doi:10.1155/2020/3595610 pmid:33194227 pmcid:PMC7641696 fatcat:ki7ko4vwqreapishrsdcwyyxda

Computer-Aided Diagnostics and Pattern Recognition: Automated Glaucoma Detection [chapter]

Thomas Köhler, Rüdiger Bock, Joachim Hornegger, Georg Michelson
2014 Teleophthalmology in Preventive Medicine  
Glaucoma is one of the major causes for blindness with a high rate of unreported cases. To reduce this number, screening programs are performed.  ...  This chapter reviews and discusses recent advances in the development of pattern recognition algorithms for automated glaucoma detection based on structural retinal image data.  ...  Acknowledgment The authors gratefully acknowledge funding of the Erlangen Graduate School in Advanced Optical Technologies (SAOT) by the German National Science Foundation (DFG) in the framework of the  ... 
doi:10.1007/978-3-662-44975-2_9 fatcat:dawhtu7gsvasrmyeg4j3h3crna

Imaging of the Human Fundus in the Clinical Setting: Past, Present and Future

Antonio Calcagni, Professor Jonathan Gibson
2013 US Ophthalmic Review  
The human fundus is a complex structure that can be easily visualized and the world of ophthalmology is going through a golden era of new and exciting fundus imaging techniques; recent advances in technology  ...  have allowed a significant improvement in the imaging modalities clinicians have available to formulate a diagnostic and treatment plan for the patient, but there is constant on-going work to improve  ...  assessment of retinal blood flow with ultrafast acquisition by color Doppler Fourier domain optical coherence tomography, Spaide RF, A pilot study of enhanced depth imaging optical coherence tomography  ... 
doi:10.17925/usor.2013.06.01.42 fatcat:ylnufkqphjcnneokebvgwksk54

Choroidal alterations of Sturge-Weber syndrome secondary glaucoma and non-glaucoma port-wine stain patients distinguished by enhanced depth imaging optical coherence tomography

Yue Wu, Lulu Huang, Yixin Liu, Li Xu, Wenyi Guo
2020 BMC Ophthalmology  
Background To evaluate the choroidal changes in Sturge-Weber syndrome (SWS) secondary glaucoma and non-glaucoma port-wine stain (PWS) patients by enhanced depth imaging optical coherence tomography (EDI-OCT  ...  Baseline demographics, EDI-OCT and fundus photography data were collected from all patients.  ...  Recent studies have shown thickening of the choroid in SWS patients by enhanced depth imaging optical coherence tomography (EDI-OCT) [6, 7] .  ... 
doi:10.1186/s12886-020-01744-y pmid:33287757 fatcat:ifnregbyyzhchg2265gglz6vqi

Optic nerve head segmentation using fundus images and optical coherence tomography images for glaucoma detection

T. R. Ganesh Babu, S. Shenbaga Devi, R. Venkatesh
2015 Biomedical Papers of the Faculty of Medicine of Palacky University  
This paper presents a novel method for glaucoma detection using digital fundus image and optical coherence tomography (OCT) image. Method.  ...  These features were evaluated by the BPN and SVM classifier. Results and Conclusion. The combined features from fundus and OCT images were analyzed.  ...  The aims of research were to: 1. determine the CDR and ISNT ratio from retinal fundus images 2. determine the features namely CDR, cup depth and retinal thickness in Optical Coherence Tomography (OCT)  ... 
doi:10.5507/bp.2015.053 pmid:26498216 fatcat:flntj2l6efgmpazk5k3pb2jf5y

Imaging Technologies for the Diagnosis of Glaucoma

Frank Bochmann, Augusto Azuara-Blanco
2009 European Ophthalmic Review  
At the moment it is not clear which of the currently used imaging technologies is the most useful for diagnosis and management of glaucoma.  ...  The diagnostic performance of the different imaging devices is comparable and appears to be acceptable for the diagnosis of manifest glaucoma.  ...  (including screening and final assessment; VF and ONH evaluation) combination of several GDx criteria was useful for screening; poor performance of HRT Windisch, 2009 48 HRT, Stratus OCT,  ... 
doi:10.17925/eor.2009.03.02.16 fatcat:vpsrelivg5fpjcze5lmnwt4fca

New Frontiers in Retinal Imaging

Zizhong Hu, Qinghuai Liu, Yannis M. Paulus
2016 International Journal of Ophthalmic Research  
Advances in retinal imaging have allowed for better understanding of the eye in health and disease, retinal pathophysiology, documenting of disease progression,and assessing therapeutic response.  ...  This article will review the classic retinal imaging modalities, state-of-the-art retinal imaging technologies, and an introduction of emerging imaging technologies.  ...  OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY (OCTA) Optical coherence tomography (OCT) angiography (OCTA) is an emerging and promising approach that uses SD-OCT for non-invasive visualizing of retinal and  ... 
doi:10.17554/j.issn.2409-5680.2016.02.48 fatcat:45rqesl7urdynm63anz2yccelu

An evidence‐based approach to the routine use of optical coherence tomography

Angelica Ly, Jack Phu, Paula Katalinic, Michael Kalloniatis
2018 Clinical and experimental optometry  
Practical, illustrative guides on the interpretation of optical coherence tomography are provided for three major diseases of the ocular fundus, in which optical coherence tomography is often crucial to  ...  Optical coherence tomography is an imaging technology that has revolutionised the detection, assessment and management of ocular disease.  ...  and provided funding support for all the authors.  ... 
doi:10.1111/cxo.12847 pmid:30560558 pmcid:PMC6590481 fatcat:chjzyfzfxvhodgyswbb3h6qbx4

GAMMA Challenge:Glaucoma grAding from Multi-Modality imAges [article]

Junde Wu, Huihui Fang, Fei Li, Huazhu Fu, Fengbin Lin, Jiongcheng Li, Lexing Huang, Qinji Yu, Sifan Song, Xinxing Xu, Yanyu Xu, Wensai Wang (+17 others)
2022 arXiv   pre-print
Color fundus photography and Optical Coherence Tomography (OCT) are the two most cost-effective tools for glaucoma screening.  ...  Both two modalities of images have prominent biomarkers to indicate glaucoma suspected. Clinically, it is often recommended to take both of the screenings for a more accurate and reliable diagnosis.  ...  Color fundus photography and Optical Coherence Tomography (OCT) are the two most cost-effective tools for glaucoma screening.  ... 
arXiv:2202.06511v3 fatcat:wxvyucxqnfc3fmjuifyj3qacwm

Complementary capabilities of photoacoustic imaging to existing optical ocular imaging techniques [chapter]

Dipen Kumar, Anju Goyal, Alan Truhan, Gary Abrams, Rayyan Manwar
2020 Diabetes and Retinopathy  
In this chapter, we will give a brief overview of fundus photography, SLO, and OCT while discussing photoacoustic imaging potential as the next major ocular imaging modality.  ...  Optical Coherence Tomography (OCT) is a non-invasive, micron level, high-resolution imaging technique based on the principal of Michelson interferometry that provides real-time images of the retina.  ...  While most of OCT technology is focused on imaging of the retina or pathologies related to the retina, enhanced depth imaging OCT (EDI-OCT) can evaluate choroidal thickness and posterior segment inflammatory  ... 
doi:10.1016/b978-0-12-817438-8.00001-8 fatcat:ph7gqtnimzentmk3jz7r4pnuyu

A Review on Glaucoma Disease Detection using Computerized Techniques

Faizan Abdullah, Rakhshanda Imtiaz, Hussain Ahmad Madni, Haroon Ahmed Khan, Tariq M. Khan, Mohammad A.U. Khan, Syed S. Naqvi
2021 IEEE Access  
This article aims to provide a comprehensive overview of various existing techniques that use machine learning to detect and diagnose glaucoma based on fundus images.  ...  Its diagnosis is dependent on the measurements of Optic Cup (OC) and Optic Disc (OD) in the retina.  ...  VOLUME 9, 2021 16) BALLISTIC OPTICAL IMAGING FOR OPTICAL COHERENCE TOMOGRAPHY A novel methodology of Ballistic optical imaging was introduced for OCT (optical coherence tomography) by Kumar et al.  ... 
doi:10.1109/access.2021.3061451 fatcat:lrg4fj4ixje2lilc3k7a33yl2u

Classification of Glaucoma with OD Segmentation and Texture Feature Extraction using Random Committee

2020 VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE  
The research focuses on the analysis each and every features of retinal image in glaucoma and builds an optimistic automatic glaucoma screening system with reduced complexity.  ...  Manual screening of glaucoma among larger amount of count is complex due to the availability of experienced manpower in Ophthalmology is less.  ...  Some of these modalities include Fundus-(Optical imaging), Optical Coherence Tomography-(cross sectional imaging), and Angiography Optical Coherence Tomography-(Flow imaging). 1.1.1Fundus imaging It is  ... 
doi:10.35940/ijitee.g5242.059720 fatcat:geg35pjtmbfytncqagrv5rkcl4

A new platform designed for glaucoma screening: identifying the risk of glaucomatous optic neuropathy using fundus photography with deep learning architecture together with intraocular pressure measurements

Anna Zaleska-Żmijewska, Jacek P. Szaflik, Paweł Borowiecki, Katarzyna Pohnke, Urszula Romaniuk, Izabela Szopa, Jacek Pniewski, Jerzy Szaflik
2020 Klinika oczna  
GDX), and optical coherence tomography (OCT) [7, 8] .  ...  This study demonstrates that deep learning techniques combined with fundus photography and IOP measurements are an effective tool for a glaucoma screening programme distinguishing between normal and glaucoma  ... 
doi:10.5114/ko.2020.94205 fatcat:l3wkx4qvazarxdl44snt4rqqoq

Choroidal imaging by spectral domain-optical coherence tomography

Lihteh Wu, Natalia Alpizar-Alvarez
2013 Taiwan Journal of Ophthalmology  
Enhanced depth imaging-optical coherence tomography (EDI-OCT) of the choroid may detect tumors not detectable by ultrasound.  ...  Improvements in optical coherence tomography (OCT) imaging technology allow the routine imaging of the choroid and deep optic nerve structures in most patients.  ...  Fig. 7 . 7 Comparison between conventional Spectralis optical coherence tomography (OCT) scanning and enhanced depth imaging (EDI) OCT scanning of the optic nerve of the same patient.  ... 
doi:10.1016/j.tjo.2013.01.003 fatcat:3hckq632jreojhjjabhc7jy6j4
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