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Li W, Liu J, Xiao Z, Zhu D, Liao J, Yu W, Feng J, Qian B, Fang Y, Li S. Automatic grading of knee osteoarthritis with a plain radiograph radiomics model: combining anteroposterior and lateral images. Insights Imaging 2024; 15:143. [PMID: 38867121 PMCID: PMC11169124 DOI: 10.1186/s13244-024-01719-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/21/2024] [Indexed: 06/14/2024] Open
Abstract
OBJECTIVES To establish a radiomics-based automatic grading model for knee osteoarthritis (OA) and evaluate the influence of different body positions on the model's effectiveness. MATERIALS AND METHODS Plain radiographs of a total of 473 pairs of knee joints from 473 patients (May 2020 to July 2021) were retrospectively analyzed. Each knee joint included anteroposterior (AP) and lateral (LAT) images which were randomly assigned to the training cohort and the testing cohort at a ratio of 7:3. First, an assessment of knee OA severity was done by two independent radiologists with Kallgren-Lawrence grading scale. Then, another two radiologists independently delineated the region of interest for radiomic feature extraction and selection. The radiomic classification features were dimensionally reduced and a machine model was conducted using logistic regression (LR). Finally, the classification efficiency of the model was evaluated using receiver operating characteristic curves and the area under the curve (AUC). RESULTS The AUC (macro/micro) of the model using a combination of AP and LAT (AP&LAT) images were 0.772/0.778, 0.818/0.799, and 0.864/0.879, respectively. The radiomic features from the combined images achieved better classification performance than the individual position image (p < 0.05). The overall accuracy of the radiomic model with AP&LAT images was 0.727 compared to 0.712 and 0.417 for radiologists with 4 years and 2 years of musculoskeletal diagnostic experience. CONCLUSIONS A radiomic model constructed by combining the AP&LAT images of the knee joint can better grade knee OA and assist clinicians in accurate diagnosis and treatment. CRITICAL RELEVANCE STATEMENT A radiomic model based on plain radiographs accurately grades knee OA severity. By utilizing the LR classifier and combining AP&LAT images, it improves accuracy and consistency in grading, aiding clinical decision-making, and treatment planning. KEY POINTS Radiomic model performed more accurately in K/L grading of knee OA than junior radiologists. Radiomic features from the combined images achieved better classification performance than the individual position image. A radiomic model can improve the grading of knee OA and assist in diagnosis and treatment.
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Affiliation(s)
- Wei Li
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Jin Liu
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Zhongli Xiao
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Dantian Zhu
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Jianwei Liao
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Wenjun Yu
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Jiaxin Feng
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Baoxin Qian
- Huiying Medical Technology (Beijing), Huiying Medical Technology Co., Ltd., Room A206, B2, Dongsheng Science and Technology Park, Haidian District, Beijing, 100192, China
| | - Yijie Fang
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Shaolin Li
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China.
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Muñoz JD, Mosquera VH, Rengifo CF, Roldan E. Machine learning-based bioimpedance assessment of knee osteoarthritis severity. Biomed Phys Eng Express 2024; 10:045013. [PMID: 38670078 DOI: 10.1088/2057-1976/ad43ef] [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: 12/21/2023] [Accepted: 04/26/2024] [Indexed: 04/28/2024]
Abstract
This study proposes a multiclass model to classify the severity of knee osteoarthritis (KOA) using bioimpedance measurements. The experimental setup considered three types of measurements using eight electrodes: global impedance with adjacent pattern, global impedance with opposite pattern, and direct impedance measurement, which were taken using an electronic device proposed by authors and based on the Analog Devices AD5933 impedance converter. The study comprised 37 participants, 25 with healthy knees and 13 with three different degrees of KOA. All participants performed 20 repetitions of each of the following five tasks: (i) sitting with the knee bent, (ii) sitting with the knee extended, (iii) sitting and performing successive extensions and flexions of the knee, (iv) standing, and (v) walking. Data from the 15 experimental setups (3 types of measurements×5 exercises) were used to train a multiclass random forest. The training and validation cycle was repeated 100 times using random undersampling. At each of the 100 cycles, 80% of the data were used for training and the rest for testing. The results showed that the proposed approach achieved average sensitivities and specificities of 100% for the four KOA severity grades in the extension, cyclic, and gait tasks. This suggests that the proposed method can serve as a screening tool to determine which individuals should undergo x-rays or magnetic resonance imaging for further evaluation of KOA.
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Affiliation(s)
- Juan D Muñoz
- Corporación Universitaria Comfacauca, Popayán, Colombia
| | - Víctor H Mosquera
- Department of Electronics, Instrumentation, and Control at the Universidad del Cauca, Popayán, Colombia
| | - Carlos F Rengifo
- Department of Electronics, Instrumentation, and Control at the Universidad del Cauca, Popayán, Colombia
| | - Elizabeth Roldan
- Department of Physiotherapy at the Fundación Universitaria Maria Cano, Popayán, Colombia
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Perico DA, Uribe AC, Niño SJ, Mayorga MCP, Sundfeld C, Lievano JR, Mendoza CC, Ramirez RG, Rapalino OR, Zayed G, Arango GC, Mieth K. A proposed modification to the Kellgren and Lawrence classification for knee osteoarthritis using a compartment-specific approach. J Exp Orthop 2024; 11:e12008. [PMID: 38455457 PMCID: PMC10885755 DOI: 10.1002/jeo2.12008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 01/22/2024] [Indexed: 03/09/2024] Open
Abstract
Purpose Since Kellgren and Lawrence (KL) originally classified knee osteoarthritis, several authors have reported varying levels of reliability and a lack of uniformity in the use of this classification system. We propose several modifications to the KL classification including the use of a compartment-specific approach that we hypothesize will lead to a better understanding of knee OA while maintaining an adequate interobserver and intraobserver reliability. Methods We propose the addition of the lateral and skyline-view radiographs to the standard anteroposterior (AP) and lateral projections in the evaluation. Also suggest a more precise definition of the evaluated parameters; the addition of the subchondral cancellous bone as parameter of evaluation; and the assessment of medial tibiofemoral compartment (MTFC), lateral tibiofemoral compartment (LTFC) and patellofemoral compartment (PFC) separately resulting in a compartment-specific KL staging score rather than a single overall KL score. Six evaluators (two knee surgeons, two radiologists and two knee fellows) used the modified KL classification to classify 230 randomly selected knees on two separate occasions. Reliabilities were assessed by calculating Krippendorff's ⍺ coefficients. Results Two hundred and ten knees were included for final evaluation and analyses (53% left knees; 65% females; mean age 56 years old). Average interobserver reliability was moderate for all compartments (0.51 for the MTFC; 0.51 for the LTFC; and 0.56 for the PFC). Average intraobserver reliability was substantial for all compartments (0.63 for the MTFC; 0.65 for the LTFC; and 0.7 for the PFC). Experienced evaluators showed a higher intraobserver reliability than less-experienced evaluators. Conclusions A modified compartment-specific KL classification enables a practical and detailed description of knee OA involvement and demonstrates acceptable interobserver and intraobserver reliability. Level of Evidence: Level III.
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Affiliation(s)
- Diego Alarcón Perico
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
| | - Abelardo Camacho Uribe
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
| | - Sara Jaimes Niño
- Department of RadiologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
| | | | - Christian Sundfeld
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
| | - Jorge Rojas Lievano
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
- School of MedicineUniversidad de Los AndesBogotáColombia
| | - Cristal Castellanos Mendoza
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
- School of MedicineUniversidad de Los AndesBogotáColombia
| | - Rafael Gómez Ramirez
- Department of RadiologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
| | - Oscar Rivero Rapalino
- Department of RadiologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
| | - Gamal Zayed
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
- School of MedicineUniversidad de Los AndesBogotáColombia
| | - German Carrillo Arango
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
- School of MedicineUniversidad de Los AndesBogotáColombia
| | - Klaus Mieth
- Department of Orthopedics and TraumatologyHospital Universitario Fundación Santa Fe de BogotáBogotáColombia
- School of MedicineUniversidad de Los AndesBogotáColombia
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Farooq MU, Ullah Z, Khan A, Gwak J. DC-AAE: Dual channel adversarial autoencoder with multitask learning for KL-grade classification in knee radiographs. Comput Biol Med 2023; 167:107570. [PMID: 37897960 DOI: 10.1016/j.compbiomed.2023.107570] [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: 05/04/2022] [Revised: 08/25/2023] [Accepted: 10/10/2023] [Indexed: 10/30/2023]
Abstract
Knee osteoarthritis (OA) is a frequent musculoskeletal disorder that leads to physical disability in older adults. Manual OA assessment is performed via visual inspection, which is highly subjective as it suffers from moderate to high inter-observer variability. Many deep learning-based techniques have been proposed to address this issue. However, owing to the limited amount of labelled data, all existing solutions have limitations in terms of performance or the number of classes. This paper proposes a novel fully automatic Kellgren and Lawrence (KL) grade classification scheme in knee radiographs. We developed a semi-supervised multi-task learning-based approach that enables the exploitation of additional unlabelled data in an unsupervised as well as supervised manner. Specifically, we propose a dual-channel adversarial autoencoder, which is first trained in an unsupervised manner for reconstruction tasks only. To exploit the additional data in a supervised way, we propose a multi-task learning framework by introducing an auxiliary task. In particular, we use leg side identification as an auxiliary task, which allows the use of more datasets, e.g., CHECK dataset. The work demonstrates that the utilization of additional data can improve the primary task of KL-grade classification for which only limited labelled data is available. This semi-supervised learning essentially helps to improve the feature learning ability of our framework, which leads to improved performance for KL-grade classification. We rigorously evaluated our proposed model on the two largest publicly available datasets for various aspects, i.e., overall performance, the effect of additional unlabelled samples and auxiliary tasks, robustness analysis, and ablation study. The proposed model achieved the accuracy, precision, recall, and F1 score of 75.53%, 74.1%, 78.51%, and 75.34%, respectively. Furthermore, the experimental results show that the suggested model not only achieves state-of-the-art performance on two publicly available datasets but also exhibits remarkable robustness.
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Affiliation(s)
- Muhammad Umar Farooq
- Department of IT, Energy Convergence (BK21 FOUR), Korea National University of Transportation, Chungju 27469, South Korea
| | - Zahid Ullah
- Department of Software, Korea National University of Transportation, Chungju 27469, South Korea
| | - Asifullah Khan
- Pattern Recognition Lab, DCIS, PIEAS, Nilore, Islamabad 45650, Pakistan
| | - Jeonghwan Gwak
- Department of IT, Energy Convergence (BK21 FOUR), Korea National University of Transportation, Chungju 27469, South Korea; Department of Software, Korea National University of Transportation, Chungju 27469, South Korea; Department of Biomedical Engineering, Korea National University of Transportation, Chungju 27469, South Korea; Department of AI Robotics Engineering, Korea National University of Transportation, Chungju 27469, South Korea.
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Elbashir M, Shubayr N, Alghathami A, Ali S, Alyami A, Alumairi N, Abdelrazig A, Omer AM, Elbasheer O. Investigation of Vitamin D Status, Age, and Body Mass Index as Determinants of Knee Osteoarthritis Severity Using the Kellgren-Lawrence Grading System in a Saudi Arabian Cohort: A Cross-Sectional Study. Cureus 2023; 15:e47523. [PMID: 38021605 PMCID: PMC10664693 DOI: 10.7759/cureus.47523] [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] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Background Knee osteoarthritis (OA) is a common and disabling condition affecting millions worldwide. This cross-sectional study endeavors to investigate the relationship between vitamin D status, age, body mass index (BMI), and knee OA in a cohort of individuals in Saudi Arabia. Methods In this cross-sectional study, we assessed vitamin D serum levels, conducted knee radiographs, and evaluated the severity of knee OA using the Kellgren-Lawrence grading system (KLGS). The analysis incorporated both descriptive and inferential statistics, including chi-square tests and a regression model to investigate the relationship between KLGS grades as indicators of knee OA severity and vitamin D levels, considering demographics as covariants. Results The study included 93 participants with suspected knee OA, of which a substantial portion of the sample population presented with knee OA (58 [62.4%]). Knee OA exhibited a higher prevalence among females, comprising 47 (50.54%) of the total, while 11 (11.83%) were male. The largest age group with knee OA was those older than 58 years, 27 (29.03%), followed by the age group of 48-58 years, 19 (20.43%). Obesity was a prevalent factor among knee OA patients (36 [38.7%]), with grade 2 (17 [18.3%]) and grade 3 (24 [25.8%]) being the most frequent. Vitamin D deficiency was prevalent in 54 (58%) of patients. Among knee OA cases, bilateral involvement was predominant in 46 (79%), with a substantial portion, 36 (62%), presenting deficient vitamin D levels. The regression model revealed that age (95% CI: 0.54-1.03, p < 0.001) and BMI (95% CI: 0.01-0.60, p = 0.04) significantly predict higher KLGS grades, indicating that increasing age and higher BMI are associated with higher KLGS grades. However, Vitamin D levels did not show a significant impact on the severity of knee OA. Conclusions The findings from this study highlight the importance of monitoring and maintaining adequate vitamin D levels to potentially reduce the risk of knee OA and the need for early detection and intervention to manage knee OA, particularly in females, older poplulation, and obese adults. They may guide healthcare providers in developing comprehensive approaches to reduce the risk of this condition.
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Affiliation(s)
- Meaad Elbashir
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan, SAU
| | - Nasser Shubayr
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan, SAU
| | - Azhar Alghathami
- Department of Radiology, King Abdul Aziz Specialist Hospital, Taif, SAU
| | - Sara Ali
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan, SAU
| | - Ali Alyami
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan, SAU
| | - Neda Alumairi
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan, SAU
| | - Ali Abdelrazig
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan, SAU
| | - Awatif M Omer
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah, SAU
| | - Ohood Elbasheer
- Department of Radiology, Olaya Polyclinic Complex, Riyadh, SAU
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Shih PC, Lee YH, Tsou HK, Cheng-Chung Wei J. Recent targets of osteoarthritis research. Best Pract Res Clin Rheumatol 2023; 37:101851. [PMID: 37422344 DOI: 10.1016/j.berh.2023.101851] [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: 04/22/2023] [Accepted: 06/14/2023] [Indexed: 07/10/2023]
Abstract
Osteoarthritis is one of the most common diseases and poses a significant medical burden worldwide. Currently, the diagnosis and treatment of osteoarthritis primarily rely on clinical symptoms and changes observed in radiographs or other image modalities. However, identification based on reliable biomarkers would greatly improve early diagnosis, help with precise monitoring of disease progression, and provide aid for accurate treatment. In recent years, several biomarkers for osteoarthritis have been identified, including image modalities and biochemical biomarkers such as collagen degradation products, pro- or anti-inflammatory cytokines, micro RNAs, long non-coding RNAs, and circular RNAs. These biomarkers offer new insights in the pathogenesis of osteoarthritis and provide potential targets for further research. This article reviews the evolution of osteoarthritis biomarkers from the perspective of pathogenesis and emphasizes the importance of continued research to improve the diagnosis, treatment, and management of osteoarthritis.
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Affiliation(s)
- Po-Cheng Shih
- Department of Allergy, Immunology & Rheumatology, Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan; Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yung-Heng Lee
- Department of Orthopedics, Cishan Hospital, Ministry of Health and Welfare, Kaohsiung, Taiwan; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan; Department of Senior Services Industry Management, Minghsin University of Science and Technology, Hsinchu, Taiwan; Department of Recreation and Sport Management, Shu-Te University, Kaohsiung, Taiwan
| | - Hsi-Kai Tsou
- Functional Neurosurgery Division, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Rehabilitation, Jen-Teh Junior College of Medicine, Nursing and Management, Houlong, Miaoli County, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - James Cheng-Chung Wei
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Division of Allergy, Immunology & Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan; Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.
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Alshamrani HA, Rashid M, Alshamrani SS, Alshehri AHD. Osteo-NeT: An Automated System for Predicting Knee Osteoarthritis from X-ray Images Using Transfer-Learning-Based Neural Networks Approach. Healthcare (Basel) 2023; 11:healthcare11091206. [PMID: 37174748 PMCID: PMC10178688 DOI: 10.3390/healthcare11091206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Knee osteoarthritis is a challenging problem affecting many adults around the world. There are currently no medications that cure knee osteoarthritis. The only way to control the progression of knee osteoarthritis is early detection. Currently, X-ray imaging is a central technique used for the prediction of osteoarthritis. However, the manual X-ray technique is prone to errors due to the lack of expertise of radiologists. Recent studies have described the use of automated systems based on machine learning for the effective prediction of osteoarthritis from X-ray images. However, most of these techniques still need to achieve higher predictive accuracy to detect osteoarthritis at an early stage. This paper suggests a method with higher predictive accuracy that can be employed in the real world for the early detection of knee osteoarthritis. In this paper, we suggest the use of transfer learning models based on sequential convolutional neural networks (CNNs), Visual Geometry Group 16 (VGG-16), and Residual Neural Network 50 (ResNet-50) for the early detection of osteoarthritis from knee X-ray images. In our analysis, we found that all the suggested models achieved a higher level of predictive accuracy, greater than 90%, in detecting osteoarthritis. However, the best-performing model was the pretrained VGG-16 model, which achieved a training accuracy of 99% and a testing accuracy of 92%.
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Affiliation(s)
- Hassan A Alshamrani
- Radiological Sciences Department, College of Applied Medical Sciences, Najran University, Najran 11001, Saudi Arabia
| | - Mamoon Rashid
- Department of Computer Engineering, Faculty of Science and Technology, Vishwakarma University, Pune 411048, India
- Research Center of Excellence for Health Informatics, Vishwakarma University, Pune 411048, India
| | - Sultan S Alshamrani
- Department of Information Technology, College of Computers and Information Technology, Taif University, Taif 21944, Saudi Arabia
| | - Ali H D Alshehri
- Radiological Sciences Department, College of Applied Medical Sciences, Najran University, Najran 11001, Saudi Arabia
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Kanda PS, Xia K, Kyslytysna A, Owoola EO. Tomato Leaf Disease Recognition on Leaf Images Based on Fine-Tuned Residual Neural Networks. PLANTS (BASEL, SWITZERLAND) 2022; 11:2935. [PMID: 36365386 PMCID: PMC9653987 DOI: 10.3390/plants11212935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Humans depend heavily on agriculture, which is the main source of prosperity. The various plant diseases that farmers must contend with have constituted a lot of challenges in crop production. The main issues that should be taken into account for maximizing productivity are the recognition and prevention of plant diseases. Early diagnosis of plant disease is essential for maximizing the level of agricultural yield as well as saving costs and reducing crop loss. In addition, the computerization of the whole process makes it simple for implementation. In this paper, an intelligent method based on deep learning is presented to recognize nine common tomato diseases. To this end, a residual neural network algorithm is presented to recognize tomato diseases. This research is carried out on four levels of diversity including depth size, discriminative learning rates, training and validation data split ratios, and batch sizes. For the experimental analysis, five network depths are used to measure the accuracy of the network. Based on the experimental results, the proposed method achieved the highest F1 score of 99.5%, which outperformed most previous competing methods in tomato leaf disease recognition. Further testing of our method on the Flavia leaf image dataset resulted in a 99.23% F1 score. However, the method had a drawback that some of the false predictions were of tomato early light and tomato late blight, which are two classes of fine-grained distinction.
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Emergence of Deep Learning in Knee Osteoarthritis Diagnosis. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2021; 2021:4931437. [PMID: 34804143 PMCID: PMC8598325 DOI: 10.1155/2021/4931437] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/13/2022]
Abstract
Osteoarthritis (OA), especially knee OA, is the most common form of arthritis, causing significant disability in patients worldwide. Manual diagnosis, segmentation, and annotations of knee joints remain as the popular method to diagnose OA in clinical practices, although they are tedious and greatly subject to user variation. Therefore, to overcome the limitations of the commonly used method as above, numerous deep learning approaches, especially the convolutional neural network (CNN), have been developed to improve the clinical workflow efficiency. Medical imaging processes, especially those that produce 3-dimensional (3D) images such as MRI, possess ability to reveal hidden structures in a volumetric view. Acknowledging that changes in a knee joint is a 3D complexity, 3D CNN has been employed to analyse the joint problem for a more accurate diagnosis in the recent years. In this review, we provide a broad overview on the current 2D and 3D CNN approaches in the OA research field. We reviewed 74 studies related to classification and segmentation of knee osteoarthritis from the Web of Science database and discussed the various state-of-the-art deep learning approaches proposed. We highlighted the potential and possibility of 3D CNN in the knee osteoarthritis field. We concluded by discussing the possible challenges faced as well as the potential advancements in adopting 3D CNNs in this field.
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Wang Y, Zheng T, Song J, Gao W. A novel automatic Knee Osteoarthritis detection method based on vibroarthrographic signals. Biomed Signal Process Control 2021. [DOI: 10.1016/j.bspc.2021.102796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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