Filters








436 Hits in 4.9 sec

Generating retinal flow maps from structural optical coherence tomography with artificial intelligence [article]

Cecilia S. Lee, Ariel J. Tyring, Yue Wu, Sa Xiao, Ariel S. Rokem, Nicolaas P. Deruyter, Qinqin Zhang, Adnan Tufail, Ruikang K. Wang, Aaron Y. Lee
2018 arXiv   pre-print
maps from standard structural optical coherence tomography (OCT) images of the same retinae, both exceeding the ability and bypassing the need for expert labeling.  ...  We used images from optical coherence tomography angiography (OCTA), a relatively new imaging modality that measures perfusion of the retinal vasculature, to train an AI algorithm to generate vasculature  ...  Optical coherence tomography (OCT) is a non-invasive imaging modality of structural retina in vivo .  ... 
arXiv:1802.08925v1 fatcat:cr6u62fho5bnbpzureuffjratu

Generating perfusion maps from structural optical coherence tomography with artificial intelligence [article]

Cecilia S Lee, Ariel J Tyring, Yue Wu, Sa Xiao, Ariel S Rokem, Nicolaas P Deruyter, Qinqin Zhang, Adnan Tufail, Ruikang K Wang, Aaron Lee
2018 bioRxiv   pre-print
maps from standard structural optical coherence tomography (OCT) images of the same retinae, both exceeding the ability and bypassing the need for expert labeling.  ...  We used images from optical coherence tomography angiography (OCTA), a relatively new imaging modality that measures perfusion of the retinal vasculature, to train an AI algorithm to generate vasculature  ...  Figure 3 : 3 En-face projection maps of retinal blood flowcreated from structural OCT volumes (A, D, G, J), AI-generated inferred flow volumes (B, E, H, K) and OCTA flow volumes (C, F, I, L).  ... 
doi:10.1101/271346 fatcat:k6xphuf3q5cefpq3gyhledncxq

DeshadowGAN: A Deep Learning Approach to Remove Shadows from Optical Coherence Tomography Images

Haris Cheong, Sripad Krishna Devalla, Tan Hung Pham, Liang Zhang, Tin Aung Tun, Xiaofei Wang, Shamira Perera, Leopold Schmetterer, Tin Aung, Craig Boote, Alexandre Thiery, Michaël J. A. Girard
2020 Translational Vision Science & Technology  
To remove blood vessel shadows from optical coherence tomography (OCT) images of the optic nerve head (ONH).  ...  A custom generative adversarial network (named DeshadowGAN) was designed and trained with 2328 B-scans in order to remove blood vessel shadows in unseen B-scans.  ...  them from non-glaucoma eyes. 3 To better understand how glaucoma affects the structure and biomechanics of the eye, optical coherence tomography (OCT) has been shown to be a promising tool. 4 It uses  ... 
doi:10.1167/tvst.9.2.23 pmid:32818084 pmcid:PMC7396186 fatcat:idmc66gskjblxpcwnoiwjv4gx4

Trends in Research Related to Ophthalmic OCT Imaging From 2011 to 2020: A Bibliometric Analysis

Ziyan Yu, Jie Ye, Fan Lu, Meixiao Shen
2022 Frontiers in Medicine  
The most co-cited references mainly focused on new emerging OCT techniques such as spectral domain optical coherence tomography (SD-OCT) and optical coherence tomography angiography (OCTA).ConclusionThe  ...  ObjectiveThe aim of this study was to explore hotspots and global research trends on optical coherence tomography (OCT) in the ophthalmic imaging field using the bibliometric technique.MethodsDocuments  ...  Retinal nerve fiber layer (139) (397) Spectral domain optical coherence tomography Choroidal neovascularization (69) Anterior segment optical coherence tomography (SD-OCT) (260) (AS-OCT)(118) Retina (115  ... 
doi:10.3389/fmed.2022.820706 pmid:35572958 pmcid:PMC9091450 fatcat:vacvovpbvrfm5jxb5vvb7o4dne

Diabetic macular thickness diagnostic guideded by optical coherence tomography using artificial intelligence methods: a scoping review protocol [article]

FABIANA BRASILEIRO
2020 medRxiv   pre-print
This scoping review aims to study these AI techniques applied in Opctical Coherence Tomography (OCT) images.  ...  The results from this scoping review will be published in a peer reviewed journal and reported at scientific meetings. We intend to share the results with the Ophthalmologists.  ...  The results from this scoping review will be published in a peer-reviewed journal and reported at scientific meetings.  ... 
doi:10.1101/2020.10.17.20214288 fatcat:vlnweb7jqffljhlxoduc4uuqwu

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.  ...  ACKNOWLEDGEMENTS This work was supported, in part, by a grant from the National Health and Medical Research Council (NHMRC) of Australia (#1033224), Guide Dogs NSW/ACT is also a partner on the NHMRC grant  ... 
doi:10.1111/cxo.12847 pmid:30560558 pmcid:PMC6590481 fatcat:chjzyfzfxvhodgyswbb3h6qbx4

Multimodal Imaging of Microvascular Abnormalities in Retinal Vein Occlusion

Yoshio Hirano, Norihiro Suzuki, Taneto Tomiyasu, Ryo Kurobe, Yusuke Yasuda, Yuya Esaki, Tsutomu Yasukawa, Munenori Yoshida, Yuichiro Ogura
2021 Journal of Clinical Medicine  
The technologies of ocular imaging modalities such as optical coherence tomography (OCT) and OCT angiography (OCTA) have progressed remarkably.  ...  severity of macular edema (ME) in eyes with retinal vein occlusion (RVO).  ...  (A) B Scan of optical coherence tomography (OCT) angiogram. Red dots indicate the presence of flow signals. Each retinal structure at the macula is disrupted.  ... 
doi:10.3390/jcm10030405 pmid:33494354 pmcid:PMC7866190 fatcat:4xqc6wqulnhghhy36j25b3vgii

Optical Coherence Tomography Angiography in Diabetes and Diabetic Retinopathy

Jacqueline Chua, Ralene Sim, Bingyao Tan, Damon Wong, Xinwen Yao, Xinyu Liu, Daniel S. W. Ting, Doreen Schmidl, Marcus Ang, Gerhard Garhöfer, Leopold Schmetterer
2020 Journal of Clinical Medicine  
Recently, optical coherence tomography angiography (OCTA) has been developed to image the retinal microvasculature, by generating 3-dimensional images based on the motion contrast of circulating blood  ...  High-quality OCTA images have also enabled the visualization of features associated with DR, including microaneurysms and neovascularization and the quantification of alterations in retinal capillary and  ...  B and E) Figure 7 . 7 Optical coherence tomography angiography (OCTA; 3 × 3 mm area) and color-coded maps indicating regions of flow voids (B and D; labelled as red) of a choriocapillaris vascular layer  ... 
doi:10.3390/jcm9061723 pmid:32503234 pmcid:PMC7357089 fatcat:vpgbqmpvorbbzdcazfxkzbddu4

Automated detection of a nonperfusion area caused by retinal vein occlusion in optical coherence tomography angiography images using deep learning

Daisuke Nagasato, Hitoshi Tabuchi, Hiroki Masumoto, Hiroki Enno, Naofumi Ishitobi, Masahiro Kameoka, Masanori Niki, Yoshinori Mitamura, Jie Zhang
2019 PLoS ONE  
We aimed to assess the ability of deep learning (DL) and support vector machine (SVM) to detect a nonperfusion area (NPA) caused by retinal vein occlusion (RVO) with optical coherence tomography angiography  ...  Heat maps were generated.  ...  In recent years, optical coherence tomography angiography (OCTA) has been devised, which can noninvasively detect a moving part of the fundus equivalent to red blood cells in the blood flow as a flow signal  ... 
doi:10.1371/journal.pone.0223965 pmid:31697697 pmcid:PMC6837754 fatcat:ai25htlvyvcebnabcmywg5gqjm

Enhanced Visualization of Retinal Microvasculature in Optical Coherence Tomography Angiography Imaging via Deep Learning

Shin Kadomoto, Akihito Uji, Yuki Muraoka, Tadamichi Akagi, Akitaka Tsujikawa
2020 Journal of Clinical Medicine  
To investigate the effects of deep learning denoising on quantitative vascular measurements and the quality of optical coherence tomography angiography (OCTA) images.  ...  Methods: U-Net-based deep learning denoising with an averaged OCTA data set as teacher data was used in this study. One hundred and thirteen patients with various retinal diseases were examined.  ...  Introduction Optical coherence tomography angiography (OCTA) is a non-invasive imaging method that images the three-dimensional retinal microvasculature by detecting the motion contrast of blood flow in  ... 
doi:10.3390/jcm9051322 pmid:32370282 fatcat:xwpinxxm7rd7zkaonfgbpjgr54

The eye, the kidney & cardiovascular disease: old concepts, better tools & new horizons

Tariq E. Farrah, Baljean Dhillon, Pearse A. Keane, David J. Webb, Neeraj Dhaun
2020 Kidney International  
The advent of optical coherence tomography (OCT) has transformed retinal imaging by capturing the chorioretinal microcirculation and its dependent tissue with near-histological resolution.  ...  Alterations in microvascular structure and function contribute to the development of hypertension, diabetes, CKD, and their associated cardiovascular disease.  ...  S4 Retinal layer segmentation by optical coherence tomography (OCT).  ... 
doi:10.1016/j.kint.2020.01.039 pmid:32471642 pmcid:PMC7397518 fatcat:ogno2qf7pvhqdkfkogc7punlki

State-of-the-Art in Retinal Optical Coherence Tomography Image Analysis [article]

Ahmadreza Baghaie, Roshan M. D'souza, Zeyun Yu
2014 arXiv   pre-print
Optical Coherence Tomography (OCT) is one of the most emerging imaging modalities that has been used widely in the field of biomedical imaging.  ...  Here, the focus is on applications of OCT in ophthalmology and retinal imaging.  ...  "Theory, developments and applications of optical coherence tomography." Journal of Physics D: Applied Physics 38.15 (2005): 2519. [3] Huang, David, et al. "Optical coherence tomography."  ... 
arXiv:1411.0740v2 fatcat:jnnx32ozbfbz5avcholiz3oxzm

Recent Developments in Detection of Central Serous Retinopathy through Imaging and Artificial Intelligence Techniques A Review [article]

Syed Ale Hassan, Shahzad Akbar, Amjad Rehman, Tanzila Saba, Hoshang Kolivand, Saeed Ali Bahaj
2021 arXiv   pre-print
Additionally, it also goes over the advantages, drawbacks and limitations of a variety of traditional imaging techniques, such as Optical Coherence Tomography Angiography (OCTA), Fundus Imaging and more  ...  recent approaches that utilize Artificial Intelligence techniques.  ...  The retinal images before and after fluorescein angiograms are depicted in Figures 4 and 5 , respectively [36] . 3) OPTICAL COHERENCE TOMOGRAPHY (OCT) Optical Coherence Tomography (OCT) appeared as  ... 
arXiv:2012.10961v4 fatcat:767inj3zmrgkbigzsh7dwj4bqi

Spectral domain optical coherence tomography for glaucoma (an AOS thesis)

Joel S Schuman
2008 Transactions of the American Ophthalmological Society  
Optical coherence tomography (OCT) is a rapidly evolving, robust technology that has profoundly changed the practice of ophthalmology.  ...  Forty-one eyes of 21 subjects (SD-OCT) and 21 eyes of 21 subjects (TD-OCT) are studied to test retinal nerve fiber layer (RNFL) thickness measurement reproducibility.  ...  Portability and Accountability Act regulations, with informed consent obtained from all subjects.  ... 
pmid:19277249 pmcid:PMC2646438 fatcat:ysuc6e63pncn3kyeoo4wq6lcaa

State-of-the-art in retinal optical coherence tomography image analysis

Ahmadreza Baghaie, Zeyun Yu, Roshan M D'Souza
2015 Quantitative Imaging in Medicine and Surgery  
Optical coherence tomography (OCT) is an emerging imaging modality that has been widely used in the field of biomedical imaging.  ...  The outcome of this step is usually thickness maps of different retinal layers which are very useful in study of normal/diseased subjects.  ...  Figure 1 Figure 2 12 Optical coherence tomography of human retina and optic nerve [(Reprinted with permission) A typical optical coherence tomography (OCT) system [(Reprinted with permission) (3)].  ... 
doi:10.3978/j.issn.2223-4292.2015.07.02 pmid:26435924 pmcid:PMC4559975 fatcat:m35jwvfrlfamrntdfmqqqwp5oi
« Previous Showing results 1 — 15 out of 436 results