Optical coherence tomography (OCT) scanning is useful in detecting various retinal diseases. However, there are not enough ophthalmologists who can diagnose retinal OCT images in much of the world. To provide OCT screening inexpensively and extensively, an automated diagnosis system is indispensable. Although many machine learning techniques have been presented for assisting ophthalmologists in diagnosing retinal OCT images, there is no technique that can diagnose independently without relying on an ophthalmologist, i.e., there is no technique that does not overlook any anomaly, including unlearned diseases. As long as there is a risk of overlooking a disease with a technique, ophthalmologists must double-check even those images that the technique classifies as normal. Here, we show that our deep-learning-based binary classifier (normal or abnormal) achieved a perfect classification on 108,308 two-dimensional retinal OCT images, i.e., true positive rate = 1.000000 and true negative rate = 1.000000; hence, the area under the ROC curve = 1.0000000. Although the test set included three types of diseases, two of these were not used for training. However, all test images were correctly classified. Furthermore, we demonstrated that our scheme was able to cope with differences in patient race. No conventional approach has achieved the above performances. Our work has a sufficient possibility of raising automated diagnosis techniques for retinal OCT images from "assistant for ophthalmologists" to "independent diagnosis system without ophthalmologists".
University of Nevada, Reno(内华达大学雷诺分校);Houston Eye Associates(休斯顿眼科协会)
Noisy data and the similarity in the ocular appearances caused by different ophthalmic pathologies pose significant challenges for an automated expert system to accurately detect retinal diseases. In addition, the lack of knowledge transferability and the need for unreasonably large datasets limit clinical application of current machine learning systems. To increase robustness, a better understanding of how the retinal subspace deformations lead to various levels of disease severity needs to be utilized for prioritizing disease-specific model details. In this paper we propose the use of diseas…
Fundus-Enhanced Disease-Aware Distillation Model for Retinal Disease Classification from OCT Images
The Hong Kong University of Science and Technology(香港科技大学);Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine(广东省中西医结合医院);Guangdong Weiren Meditech Co., Ltd(广东唯仁医疗科技有限公司)
Sri Venkateswara college of Engineering(斯里文卡特斯瓦拉工程学院)
Teleophthalmology holds a great potential to improve the quality, access, and affordability in health care. For patients, it can reduce the need for travel and provide the access to a superspecialist. Ophthalmology lends itself easily to telemedicine as it is a largely image based diagnosis. The main goal of the proposed system is to diagnose the type of disease in the retina and to automatically detect and segment retinal diseases without human supervision or interaction. The proposed system will diagnose the disease present in the retina using a neural network based classifier.The extent of …
The Role of AI in Early Detection of Life-Threatening Diseases: A Retinal Imaging Perspective
Naif Arab University for Security Sciences(奈伊夫阿拉伯安全科学大学);Charles Sturt University(查尔斯特大学);Mohamed bin Zayed University of Artificial Intelligence(穆罕默德·本·扎耶德人工智能大学)
Explainable Artificial Intelligence (AI) in the form of an interpretable and semiautomatic approach to stage grading ocular pathologies such as Diabetic retinopathy, Hypertensive retinopathy, and other retinopathies on the backdrop of major systemic diseases. The experimental study aims to evaluate an explainable staged grading process without using deep Convolutional Neural Networks (CNNs) directly. Many current CNN-based deep neural networks used for diagnosing retinal disorders might have appreciable performance but fail to pinpoint the basis driving their decisions. To improve these decisi…
Khulna University of Engineering and Technology(库尔纳工程技术大学)
In medical science, the use of computer science in disease detection and diagnosis is gaining popularity. Previously, the detection of disease used to take a significant amount of time and was less reliable. Machine learning (ML) techniques employed in recent biomedical researches are making revolutionary changes by gaining higher accuracy with more concise timing. At present, it is even possible to automatically detect diseases from the scanned images with the help of ML. In this research, we have taken such an attempt to detect retinal diseases from optical coherence tomography (OCT) X-ray i…
Medical University of Vienna(维也纳医科大学);Centre for Eye Research Australia(澳大利亚眼科研究中心);Royal Victorian Eye and Ear Hospital(皇家维多利亚眼耳医院);The University of Melbourne(墨尔本大学)
Longitudinal imaging is capable of capturing the static ana\-to\-mi\-cal structures and the dynamic changes of the morphology resulting from aging or disease progression. Self-supervised learning allows to learn new representation from available large unlabelled data without any expert knowledge. We propose a deep learning self-supervised approach to model disease progression from longitudinal retinal optical coherence tomography (OCT). Our self-supervised model takes benefit from a generic time-related task, by learning to estimate the time interval between pairs of scans acquired from the sa…
Ultra-widefield (UWF) imaging is a promising modality that captures a larger retinal field of view compared to traditional fundus photography. Previous studies showed that deep learning (DL) models are effective for detecting retinal disease in UWF images, but primarily considered individual diseases under less-than-realistic conditions (excluding images with other diseases, artefacts, comorbidities, or borderline cases; and balancing healthy and diseased images) and did not systematically investigate which regions of the UWF images are relevant for disease detection. We first improve on the s…
Tsinghua-Berkeley Shenzhen Institute(清华-伯克利深圳学院);University of California, Berkeley(加州大学伯克利分校);Affiliated Eye Hospital of Nanchang University(南昌大学附属眼科医院)
Retinal vascular diseases affect the well-being of human body and sometimes provide vital signs of otherwise undetected bodily damage. Recently, deep learning techniques have been successfully applied for detection of diabetic retinopathy (DR). The main obstacle of applying deep learning techniques to detect most other retinal vascular diseases is the limited amount of data available. In this paper, we propose a transfer learning technique that aims to utilize the feature similarities for detecting retinal vascular diseases. We choose the well-studied DR detection as a source task and identify…
FaraAI Company(法拉人工智能公司);University of Tehran(德黑兰大学)
Optical coherence tomography (OCT) imaging is a well-known technology for visualizing retinal layers and helps ophthalmologists to detect possible diseases. Accurate and early diagnosis of common retinal diseases can prevent the patients from suffering critical damages to their vision. Computer-aided diagnosis (CAD) systems can significantly assist ophthalmologists in improving their examinations. This paper presents a new enhanced deep ensemble convolutional neural network for detecting retinal diseases from OCT images. Our model generates rich and multi-resolution features by employing the l…
OCTCube-M: A 3D multimodal optical coherence tomography foundation model for retinal and systemic diseases with cross-cohort and cross-device validation
Early detection of retinal diseases is one of the most important means of preventing partial or permanent blindness in patients. In this research, a novel multi-label classification system is proposed for the detection of multiple retinal diseases, using fundus images collected from a variety of sources. First, a new multi-label retinal disease dataset, the MuReD dataset, is constructed, using a number of publicly available datasets for fundus disease classification. Next, a sequence of post-processing steps is applied to ensure the quality of the image data and the range of diseases, present …
Patch-Based and Non-Patch-Based inputs Comparison into Deep Neural Models: Application for the Segmentation of Retinal Diseases on Optical Coherence Tomography Volumes
Laboratoire LIMOS, CNRS UMR 6158(利摩日大学实验室,法国国家科研中心UMR 6158联合研究单位);Université Clermont-Auvergne(克莱蒙奥弗涅大学);AL Mansour University College(曼苏尔大学学院)
Jadavpur University(贾达布尔大学);IIT Madras(印度理工学院马德拉斯分校);IIT Jodhpur(印度理工学院焦特布尔分校);Inception Institute of AI(Inception人工智能研究院);Monash University(莫纳什大学);Airdoc-Monash Research(Airdoc-莫纳什研究中心)
Convolutional Neural Network models have successfully detected retinal illness from optical coherence tomography (OCT) and fundus images. These CNN models frequently rely on vast amounts of labeled data for training, difficult to obtain, especially for rare diseases. Furthermore, a deep learning system trained on a data set with only one or a few diseases cannot detect other diseases, limiting the system's practical use in disease identification. We have introduced an unsupervised approach for detecting anomalies in retinal images to overcome this issue. We have proposed a simple, memory effic…
BRAC University(BRAC大学);Islamic University of Technology(伊斯兰技术大学)
In the world of medical diagnostics, the adoption of various deep learning techniques is quite common as well as effective, and its statement is equally true when it comes to implementing it into the retina Optical Coherence Tomography (OCT) sector, but (i)These techniques have the black box characteristics that prevent the medical professionals to completely trust the results generated from them (ii)Lack of precision of these methods restricts their implementation in clinical and complex cases (iii)The existing works and models on the OCT classification are substantially large and complicated…
According to the World Health Organization, 285 million people worldwide live with visual impairment. The most commonly used imaging technique for diagnosis in ophthalmology is optical coherence tomography (OCT). However, analysis of retinal OCT requires trained ophthalmologists and time, making a comprehensive early diagnosis unlikely. A recent study established a diagnostic tool based on convolutional neural networks (CNN), which was trained on a large database of retinal OCT images. The performance of the tool in classifying retinal conditions was on par to that of trained medical experts. …
Artificial Intelligence in Assessing Cardiovascular Diseases and Risk Factors via Retinal Fundus Images: A Review of the Last Decade
Nikookari Eye Hospital(尼库卡里眼科医院);Tabriz University of Medical Sciences(大不里士医科大学);Cardiovascular Research Center(心血管研究中心);Research Center for Evidence‑Based Medicine(循证医学研究中心);Iranian EBM Centre: A Joanna Briggs Institute Affiliated Group(伊朗循证医学中心:乔安娜·布里格斯研究所附属机构);Tabriz Islamic Art University(大不里士伊斯兰艺术大学);Institute for Intelligent Systems Research and Innovation (IISRI)(智能系统研究与创新研究所(IISRI));Deakin University(迪肯大学)
The Pingry School(平格里学校);Chinle Comprehensive Health Care Facility(钦利综合医疗中心);University of Maryland, College Park(马里兰大学帕克分校);NVIDIA(英伟达)
30 million Optical Coherence Tomography (OCT) imaging tests are issued annually to diagnose various retinal diseases, but accurate diagnosis of OCT scans requires trained eye care professionals who are still prone to making errors. With better systems for diagnosis, many cases of vision loss caused by retinal disease could be entirely avoided. In this work, we present ReLaX, a novel deep learning framework for explainable, accurate classification of retinal pathologies which achieves state-of-the-art accuracy. Furthermore, we emphasize producing both qualitative and quantitative explanations o…
An Explainable Transformer Model for Alzheimer's Disease Detection Using Retinal Imaging
Nanotechnology, Biotechnology, Information Technology and Cognitive Science Laboratory, University of Tehran(特拉布宗大学纳米技术、生物技术、信息技术和认知科学实验室);Department of Mechatronics, School of Intelligent Systems, College of Interdisciplinary Science and Technology, University of Tehran(特拉布宗大学机电系,智能系统学院,跨学科科学与技术学院);School of Science and Technology, Faculty of Science, Agriculture, Business and Law, University of New England(新英格兰大学科学与技术学院,科学、农业、商业与法律学院);Graduate School of Health, University of Technology Sydney(悉尼技术大学健康研究生院);School of Medicine and Public Health, College of Health, Medicine and Wellbeing, The University of Newcastle(新castle大学医学与公共卫生学院,健康、医学与福祉学院)
Shanghai Jiao Tong University(上海交通大学);EPFL(洛桑联邦理工学院);Shanghai General Hospital(上海市第一人民医院)
Projection map (PM) from optical coherence tomography (OCT) B-scan is an important tool to diagnose retinal diseases, which typically requires retinal layer segmentation. In this study, we present a novel end-to-end framework to predict PMs from B-scans. Instead of segmenting retinal layers explicitly, we represent them implicitly as predicted coordinates. By pixel interpolation on uniformly sampled coordinates between retinal layers, the corresponding PMs could be easily obtained with pooling. Notably, all the operators are differentiable; therefore, this Differentiable Projection Module (DPM…
Purpose: To create and evaluate the accuracy of an artificial intelligence Deep learning platform (ORAiCLE) capable of using only retinal fundus images to predict both an individuals overall 5 year cardiovascular risk (CVD) and the relative contribution of the component risk factors that comprise this risk. Methods: We used 165,907 retinal images from a database of 47,236 patient visits. Initially, each image was paired with biometric data age, ethnicity, sex, presence and duration of diabetes a HDL/LDL ratios as well as any CVD event wtihin 5 years of the retinal image acquisition. A risk sco…
Generative artificial intelligence in ophthalmology: multimodal retinal images for the diagnosis of Alzheimer's disease with convolutional neural networks
A Disease-Specific Foundation Model Using Over 100K Fundus Images: Release and Validation for Abnormality and Multi-Disease Classification on Downstream Tasks
Seoul National University(首尔大学);Seoul National University Hospital(首尔大学附属医院)
OCTDL: Optical Coherence Tomography Dataset for Image-Based Deep Learning Methods
Friedrich-Alexander-Universität Erlangen-Nürnberg(弗里德里希-亚历山大-埃尔朗根-纽伦堡大学);Ural Federal University Named after the First President of Russia B. N. Yeltsin(俄罗斯首任总统B.N.叶利钦命名的乌拉尔联邦大学);Ophthalmosurgery Clinic "Professorskaya Plus"(“Professorskaya Plus”眼科诊所);Ural State Medical University(乌拉尔国立医科大学)
Nanjing University of Science and Technology(南京理工大学)
Optical coherence tomography angiography (OCTA) is a novel imaging modality that has been widely utilized in ophthalmology and neuroscience studies to observe retinal vessels and microvascular systems. However, publicly available OCTA datasets remain scarce. In this paper, we introduce the largest and most comprehensive OCTA dataset dubbed OCTA-500, which contains OCTA imaging under two fields of view (FOVs) from 500 subjects. The dataset provides rich images and annotations including two modalities (OCT/OCTA volumes), six types of projections, four types of text labels (age / gender / eye / d…
University of California, Berkeley(加利福尼亚大学伯克利分校);International Computer Science Institute(国际计算机科学研究所);University of California, Davis(加利福尼亚大学戴维斯分校)
Many diseases are classified based on human-defined rubrics that are prone to bias. Supervised neural networks can automate the grading of retinal fundus images, but require labor-intensive annotations and are restricted to the specific trained task. Here, we employed an unsupervised network with Non-Parametric Instance Discrimination (NPID) to grade age-related macular degeneration (AMD) severity using fundus photographs from the Age-Related Eye Disease Study (AREDS). Our unsupervised algorithm demonstrated versatility across different AMD classification schemes without retraining, and achiev…
School of Information Science and Technology, ShanghaiTech University(上海科技大学信息科学与技术学院);Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences(中国科学院慈溪生物医学工程研究所);UBTech Research(优必选研究院);Southern University of Science and Technology(南方科技大学);Shanghai Engineering Research Center of Intelligent Vision and Imaging(上海智能视觉与影像工程技术研究中心)
Anomaly detection in retinal image refers to the identification of abnormality caused by various retinal diseases/lesions, by only leveraging normal images in training phase. Normal images from healthy subjects often have regular structures (e.g., the structured blood vessels in the fundus image, or structured anatomy in optical coherence tomography image). On the contrary, the diseases and lesions often destroy these structures. Motivated by this, we propose to leverage the relation between the image texture and structure to design a deep neural network for anomaly detection. Specifically, we…
JIS College of Engineering(JIS工程学院);Kalyani Govt. Engineering College(卡利亚尼政府工程学院)
Segmentation of blood vessels in retinal images provides early diagnosis of diseases like glaucoma, diabetic retinopathy and macular degeneration. Among these diseases occurrence of Glaucoma is most frequent and has serious ocular consequences that can even lead to blindness, if it is not detected early. The clinical criteria for the diagnosis of glaucoma include intraocular pressure measurement, optic nerve head evaluation, retinal nerve fiber layer and visual field defects. This form of blood vessel segmentation helps in early detection for ophthalmic diseases, and potentially reduces the ri…
Prediction of Alzheimer's Disease Risk Factors from Retinal Images via Deep Learning: Development and Validation of Biologically Relevant Morphological Associations in the UK Biobank
J. Crayton Pruitt Family Dept. of Biomedical Engineering, University of Florida(朱·克雷顿·普瑞特生物医学工程系,佛罗里达大学);University of Florida Research Computing(佛罗里达大学研究计算中心);Meta AI (FAIR)(Meta AI(FAIR));School of Behavioral and Brain Sciences, University of Texas at Dallas(德克萨斯大学达拉斯分校行为与脑科学学院);Dept. of Electrical and Computer Engineering, University of Florida(佛罗里达大学电气与计算机工程系);Dept. of Computer and Information Science and Engineering, University of Florida(佛罗里达大学计算机与信息科学与工程系);Center for Cognitive Aging and Memory, University of Florida(佛罗里达大学认知衰老与记忆中心)
Optical coherence tomography (OCT) is a non-invasive 3D modality widely used in ophthalmology for imaging the retina. Achieving automated, anatomically coherent retinal layer segmentation on OCT is important for the detection and monitoring of different retinal diseases, like Age-related Macular Disease (AMD) or Diabetic Retinopathy. However, the majority of state-of-the-art layer segmentation methods are based on purely supervised deep-learning, requiring a large amount of pixel-level annotated data that is expensive and hard to obtain. With this in mind, we introduce a semi-supervised paradi…
QMix: Quality-aware Learning with Mixed Noise for Robust Retinal Disease Diagnosis
Hong Kong University of Science and Technology(香港科技大学);Fudan University(复旦大学);HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute(香港科技大学深港协同创新研究院)
Noise in speckle-prone optical coherence tomography tends to obfuscate important details necessary for medical diagnosis. In this paper, a denoising approach that preserves disease characteristics on retinal optical coherence tomography images in ophthalmology is presented. By combining a deep convolutional autoencoder with a priorly trained ResNet image classifier as regularizer, the perceptibility of delicate details is encouraged and only information-less background noise is filtered out. With our approach, higher peak signal-to-noise ratios with $ \mathrm{PSNR} = 31.2\,\mathrm{dB} $ and hi…
Quasi-multimodal-based pathophysiological feature learning for retinal disease diagnosis
Tianjin University(天津大学);Tianjin Key Laboratory of Ophthalmology and Visual Science(天津眼科学与视觉科学重点实验室);Tianjin Eye Institute(天津眼科研究院);Tianjin Eye Hospital(天津眼科医院);Clinical College of Ophthalmology, Tianjin Medical University(天津医科大学临床医学院);Department of Ophthalmology, The Second Affiliated Hospital of Nanchang University(南昌大学第二附属医院眼科部);Nankai University Affiliated Eye Hospital(南开大学附属眼科医院)
LVS-Net: A Lightweight Vessels Segmentation Network for Retinal Image Analysis
School of Electronics, Electrical Engineering and Computer Science, Queen’s University Belfast(贝尔法斯特女王大学电子、电气工程与计算机科学学院);Abasyn University(阿巴辛大学);School of Computer Science and Engineering, University of New South Wales(新南威尔士大学计算机科学与工程学院)
Inception Institute of Artificial Intelligence(人工智能起源研究所)
Retinal fundus images are widely used for the clinical screening and diagnosis of eye diseases. However, fundus images captured by operators with various levels of experience have a large variation in quality. Low-quality fundus images increase uncertainty in clinical observation and lead to the risk of misdiagnosis. However, due to the special optical beam of fundus imaging and structure of the retina, natural image enhancement methods cannot be utilized directly to address this. In this paper, we first analyze the ophthalmoscope imaging system and simulate a reliable degradation of major inf…
The identification and quantification of markers in medical images is critical for diagnosis, prognosis, and disease management. Supervised machine learning enables the detection and exploitation of findings that are known a priori after annotation of training examples by experts. However, supervision does not scale well, due to the amount of necessary training examples, and the limitation of the marker vocabulary to known entities. In this proof-of-concept study, we propose unsupervised identification of anomalies as candidates for markers in retinal Optical Coherence Tomography (OCT) imaging…
Medical University Vienna(维也纳医科大学);Department of Biomedical Imaging and Image-guided Therapy, Computational Imaging Research Lab, Medical University Vienna, Austria(维也纳医科大学生物医学成像与影像引导治疗系计算成像研究实验室);Christian Doppler Laboratory for Ophthalmic Image Analysis, Department of Ophthalmology and Optometry, Medical University Vienna, Austria(维也纳医科大学眼科与视光学系眼科图像分析基督教多普勒实验室);Department of Ophthalmology and Optometry, Medical University Vienna, Austria(维也纳医科大学眼科与视光学系)
The automatic detection of disease related entities in retinal imaging data is relevant for disease- and treatment monitoring. It enables the quantitative assessment of large amounts of data and the corresponding study of disease characteristics. The presence of hyperreflective foci (HRF) is related to disease progression in various retinal diseases. Manual identification of HRF in spectral-domain optical coherence tomography (SD-OCT) scans is error-prone and tedious. We present a fully automated machine learning approach for segmenting HRF in SD-OCT scans. Evaluation on annotated OCT images o…
Georgia Institute of Technology(佐治亚理工学院);University of Cambridge(剑桥大学);Bern University Hospital(伯尔尼大学医院);National Taiwan University(台湾大学);University of California, Berkeley(加州大学伯克利分校);Tri-Service General Hospital(三军总医院);Beijing Friendship Hospital(北京友谊医院);King Abdullah University of Science and Technology (KAUST)(阿卜杜拉国王科技大学);University of Amsterdam(阿姆斯特丹大学)
In this work, we propose an AI-based method that intends to improve the conventional retinal disease treatment procedure and help ophthalmologists increase diagnosis efficiency and accuracy. The proposed method is composed of a deep neural networks-based (DNN-based) module, including a retinal disease identifier and clinical description generator, and a DNN visual explanation module. To train and validate the effectiveness of our DNN-based module, we propose a large-scale retinal disease image dataset. Also, as ground truth, we provide a retinal image dataset manually labeled by ophthalmologis…
A BERT-Style Self-Supervised Learning CNN for Disease Identification from Retinal Images
School of Computing and Augmented Intelligence, Arizona State University(计算与增强智能学院,亚利桑那州立大学);McKeley School of Engineering, Washington University in St. Louis(工程学院,华盛顿大学圣路易斯分校);Department of Neurology, Mayo Clinic(神经病学部,梅奥诊所)
Nanyang Technological University(南洋理工大学);Inception Institute of Artificial Intelligence (IIAI)(起源人工智能研究院);Institute of Information Science, Beijing Jiaotong University(北京交通大学信息科学研究所);Nanjing University of Science and Technology(南京理工大学);Institute of Computing Technology, Chinese Academy of Sciences(中国科学院计算技术研究所)
Retinal images have been widely used by clinicians for early diagnosis of ocular diseases. However, the quality of retinal images is often clinically unsatisfactory due to eye lesions and imperfect imaging process. One of the most challenging quality degradation issues in retinal images is non-uniform which hinders the pathological information and further impairs the diagnosis of ophthalmologists and computer-aided analysis.To address this issue, we propose a non-uniform illumination removal network for retinal image, called NuI-Go, which consists of three Recursive Non-local Encoder-Decoder R…
A Hybrid Fully Convolutional CNN-Transformer Model for Inherently Interpretable Disease Detection from Retinal Fundus Images
Hertie Institute for AI in Brain Health, University of Tübingen, Germany(人工智能与脑健康赫尔特研究所,图宾根大学,德国);Tübingen AI Center, University of Tübingen, Germany(图宾根人工智能中心,图宾根大学,德国)
Recent contrastive learning methods achieved state-of-the-art in low label regimes. However, the training requires large batch sizes and heavy augmentations to create multiple views of an image. With non-contrastive methods, the negatives are implicitly incorporated in the loss, allowing different images and modalities as pairs. Although the meta-information (i.e., age, sex) in medical imaging is abundant, the annotations are noisy and prone to class imbalance. In this work, we exploited already existing temporal information (different visits from a patient) in a longitudinal optical coherence…
Predicting risk of cardiovascular disease using retinal OCT imaging
University of Leeds(利兹大学);Research Institute for Signals, Systems and Computational Intelligence(信号、系统与计算智能研究所);CONICET-UNL(阿根廷科学技术研究委员会-国立洛马大学);University of Manchester(曼彻斯特大学);Manchester University NHS Foundation Trust(曼彻斯特大学NHS基金会信托基金);European Molecular Biology Laboratory(欧洲分子生物学实验室);European Bioinformatics Institute (EMBL-EBI)(欧洲生物信息研究所);NIHR Manchester Biomedical Research Centre(NIHR曼彻斯特生物医学研究中心);Manchester Academic Health Science Centre(曼彻斯特学术健康科学中心)
提出基于 VAE 与随机森林的视网膜 OCT 自监督方法,结合临床数据预测心肌梗死或卒中风险,性能优于 QRISK3,并揭示脉络膜层为关键特征。
University of California, Santa Barbara(加利福尼亚大学圣巴巴拉分校)
Fundus photography has routinely been used to document the presence and severity of retinal degenerative diseases such as age-related macular degeneration (AMD), glaucoma, and diabetic retinopathy (DR) in clinical practice, for which the fovea and optic disc (OD) are important retinal landmarks. However, the occurrence of lesions, drusen, and other retinal abnormalities during retinal degeneration severely complicates automatic landmark detection and segmentation. Here we propose HBA-U-Net: a U-Net backbone enriched with hierarchical bottleneck attention. The network consists of a novel bottle…
Early Alzheimer's Disease Detection from Retinal OCT Images: A UK Biobank Study
Department of Computer Engineering Isik University Istanbul, Turkey(计算机工程系伊斯肯大学);Department of Artificial Intelligence and Data Engineering(人工智能与数据工程系);Data Engineering Istanbul Technical University Istanbul, Turkey(数据工程系伊斯坦布尔技术大学)
Isfahan University of Technology(伊斯法罕理工大学);University of Michigan(密歇根大学)
Retinal vessel information is helpful in retinal disease screening and diagnosis. Retinal vessel segmentation provides useful information about vessels and can be used by physicians during intraocular surgery and retinal diagnostic operations. Convolutional neural networks (CNNs) are powerful tools for classification and segmentation of medical images. Complexity of CNNs makes it difficult to implement them in portable devices such as binocular indirect ophthalmoscopes. In this paper a simplification approach is proposed for CNNs based on combination of quantization and pruning. Fully connecte…
Multi-OCT-SelfNet: Integrating Self-Supervised Learning with Multi-Source Data Fusion for Enhanced Multi-Class Retinal Disease Classification
University of North Carolina at Charlotte(北卡罗来纳大学夏洛特分校);University of Illinois at Chicago(伊利诺伊大学芝加哥分校);Stanford University School of Medicine(斯坦福大学医学院)
Optical coherence tomography (OCT) is commonly used to analyze retinal layers for assessment of ocular diseases. In this paper, we propose a method for retinal layer segmentation and quantification of uncertainty based on Bayesian deep learning. Our method not only performs end-to-end segmentation of retinal layers, but also gives the pixel wise uncertainty measure of the segmentation output. The generated uncertainty map can be used to identify erroneously segmented image regions which is useful in downstream analysis. We have validated our method on a dataset of 1487 images obtained from 15 …