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Li G, Togo R, Ogawa T, Haseyama M. Importance-aware adaptive dataset distillation. Neural Netw 2024; 172:106154. [PMID: 38309137 DOI: 10.1016/j.neunet.2024.106154] [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: 05/15/2023] [Revised: 01/04/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Herein, we propose a novel dataset distillation method for constructing small informative datasets that preserve the information of the large original datasets. The development of deep learning models is enabled by the availability of large-scale datasets. Despite unprecedented success, large-scale datasets considerably increase the storage and transmission costs, resulting in a cumbersome model training process. Moreover, using raw data for training raises privacy and copyright concerns. To address these issues, a new task named dataset distillation has been introduced, aiming to synthesize a compact dataset that retains the essential information from the large original dataset. State-of-the-art (SOTA) dataset distillation methods have been proposed by matching gradients or network parameters obtained during training on real and synthetic datasets. The contribution of different network parameters to the distillation process varies, and uniformly treating them leads to degraded distillation performance. Based on this observation, we propose an importance-aware adaptive dataset distillation (IADD) method that can improve distillation performance by automatically assigning importance weights to different network parameters during distillation, thereby synthesizing more robust distilled datasets. IADD demonstrates superior performance over other SOTA dataset distillation methods based on parameter matching on multiple benchmark datasets and outperforms them in terms of cross-architecture generalization. In addition, the analysis of self-adaptive weights demonstrates the effectiveness of IADD. Furthermore, the effectiveness of IADD is validated in a real-world medical application such as COVID-19 detection.
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Affiliation(s)
- Guang Li
- Education and Research Center for Mathematical and Data Science, Hokkaido University, N-12, W-7, Kita-Ku, Sapporo, 060-0812, Japan.
| | - Ren Togo
- Faculty of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
| | - Takahiro Ogawa
- Faculty of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
| | - Miki Haseyama
- Faculty of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
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Zhang L, Li MY, Zhi C, Zhu M, Ma H. Identification of Early Warning Signals of Infectious Diseases in Hospitals by Integrating Clinical Treatment and Disease Prevention. Curr Med Sci 2024; 44:273-280. [PMID: 38632143 DOI: 10.1007/s11596-024-2850-x] [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: 09/06/2023] [Accepted: 02/19/2024] [Indexed: 04/19/2024]
Abstract
The global incidence of infectious diseases has increased in recent years, posing a significant threat to human health. Hospitals typically serve as frontline institutions for detecting infectious diseases. However, accurately identifying warning signals of infectious diseases in a timely manner, especially emerging infectious diseases, can be challenging. Consequently, there is a pressing need to integrate treatment and disease prevention data to conduct comprehensive analyses aimed at preventing and controlling infectious diseases within hospitals. This paper examines the role of medical data in the early identification of infectious diseases, explores early warning technologies for infectious disease recognition, and assesses monitoring and early warning mechanisms for infectious diseases. We propose that hospitals adopt novel multidimensional early warning technologies to mine and analyze medical data from various systems, in compliance with national strategies to integrate clinical treatment and disease prevention. Furthermore, hospitals should establish institution-specific, clinical-based early warning models for infectious diseases to actively monitor early signals and enhance preparedness for infectious disease prevention and control.
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Affiliation(s)
- Lei Zhang
- Sixth Medical Center, Chinese PLA General Hospital, Beijing, 100048, China
| | - Min-Ye Li
- The Nursing Department, Chinese PLA General Hospital, Beijing, 100853, China
| | - Chen Zhi
- The Nursing Department, Chinese PLA General Hospital, Beijing, 100853, China
| | - Min Zhu
- Sixth Medical Center, Chinese PLA General Hospital, Beijing, 100048, China
| | - Hui Ma
- The Nursing Department, Chinese PLA General Hospital, Beijing, 100853, China.
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Chen Y, Lin Y, Xu X, Ding J, Li C, Zeng Y, Xie W, Huang J. Multi-domain medical image translation generation for lung image classification based on generative adversarial networks. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2023; 229:107200. [PMID: 36525713 DOI: 10.1016/j.cmpb.2022.107200] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 06/17/2023]
Abstract
OBJECTIVE Lung image classification-assisted diagnosis has a large application market. Aiming at the problems of poor attention to existing translation models, the insufficient ability of key transfer and generation, insufficient quality of generated images, and lack of detailed features, this paper conducts research on lung medical image translation and lung image classification based on generative adversarial networks. METHODS This paper proposes a medical image multi-domain translation algorithm MI-GAN based on the key migration branch. After the actual analysis of the imbalanced medical image data, the key target domain images are selected, the key migration branch is established, and a single generator is used to complete the medical image multi-domain translation. The conversion between domains ensures the attention performance of the medical image multi-domain translation model and the quality of the synthesized images. At the same time, a lung image classification model based on synthetic image data augmentation is proposed. The synthetic lung CT medical images and the original real medical images are used as the training set together to study the performance of the auxiliary diagnosis model in the classification of normal healthy subjects, and also of the mild and severe COVID-19 patients. RESULTS Based on the chest CT image dataset, MI-GAN has completed the mutual conversion and generation of normal lung images without disease, viral pneumonia and Mild COVID-19 images. The synthetic images GAN-test and GAN-train indicators reached, respectively 92.188% and 85.069%, compared with other generative models in terms of authenticity and diversity, there is a considerable improvement. The accuracy rate of pneumonia diagnosis of the lung image classification model is 93.85%, which is 3.1% higher than that of the diagnosis model trained only with real images; the sensitivity of disease diagnosis is 96.69%, a relative improvement of 7.1%. 1%, the specificity was 89.70%; the area under the ROC curve (AUC) increased from 94.00% to 96.17%. CONCLUSION In this paper, a multi-domain translation model of medical images based on the key transfer branch is proposed, which enables the translation network to have key transfer and attention performance. It is verified on lung CT images and achieved good results. The required medical images are synthesized by the above medical image translation model, and the effectiveness of the synthesized images on the lung image classification network is verified experimentally.
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Affiliation(s)
- Yunfeng Chen
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, 950 Eastsea street, Fengzhe District, Quanzhou, Fujian 362000, China.
| | - Yalan Lin
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, 950 Eastsea street, Fengzhe District, Quanzhou, Fujian 362000, China
| | - Xiaodie Xu
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, 950 Eastsea street, Fengzhe District, Quanzhou, Fujian 362000, China
| | - Jinzhen Ding
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, 950 Eastsea street, Fengzhe District, Quanzhou, Fujian 362000, China
| | - Chuzhao Li
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, 950 Eastsea street, Fengzhe District, Quanzhou, Fujian 362000, China
| | - Yiming Zeng
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, 950 Eastsea street, Fengzhe District, Quanzhou, Fujian 362000, China.
| | - Weifang Xie
- Faculty of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou 362000, China; Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou 362000, China; Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou 362000, China
| | - Jianlong Huang
- Faculty of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou 362000, China; Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou 362000, China; Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou 362000, China
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Xu W, Shi J, Lin Y, Liu C, Xie W, Liu H, Huang S, Zhu D, Su L, Huang Y, Ye Y, Huang J. Deep learning-based image segmentation model using an MRI-based convolutional neural network for physiological evaluation of the heart. Front Physiol 2023; 14:1148717. [PMID: 37025385 PMCID: PMC10070825 DOI: 10.3389/fphys.2023.1148717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/22/2023] [Indexed: 04/08/2023] Open
Abstract
Background and Objective: Cardiovascular disease is a high-fatality health issue. Accurate measurement of cardiovascular function depends on precise segmentation of physiological structure and accurate evaluation of functional parameters. Structural segmentation of heart images and calculation of the volume of different ventricular activity cycles form the basis for quantitative analysis of physiological function and can provide the necessary support for clinical physiological diagnosis, as well as the analysis of various cardiac diseases. Therefore, it is important to develop an efficient heart segmentation algorithm. Methods: A total of 275 nuclear magnetic resonance imaging (MRI) heart scans were collected, analyzed, and preprocessed from Huaqiao University Affiliated Strait Hospital, and the data were used in our improved deep learning model, which was designed based on the U-net network. The training set included 80% of the images, and the remaining 20% was the test set. Based on five time phases from end-diastole (ED) to end-systole (ES), the segmentation findings showed that it is possible to achieve improved segmentation accuracy and computational complexity by segmenting the left ventricle (LV), right ventricle (RV), and myocardium (myo). Results: We improved the Dice index of the LV to 0.965 and 0.921, and the Hausdorff index decreased to 5.4 and 6.9 in the ED and ES phases, respectively; RV Dice increased to 0.938 and 0.860, and the Hausdorff index decreased to 11.7 and 12.6 in the ED and ES, respectively; myo Dice increased to 0.889 and 0.901, and the Hausdorff index decreased to 8.3 and 9.2 in the ED and ES, respectively. Conclusion: The model obtained in the final experiment provided more accurate segmentation of the left and right ventricles, as well as the myocardium, from cardiac MRI. The data from this model facilitate the prediction of cardiovascular disease in real-time, thereby providing potential clinical utility.
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Affiliation(s)
- Wanni Xu
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
| | - Jianshe Shi
- Department of General Surgery, Huaqiao University Affiliated Strait Hospital, Quanzhou, China
| | - Yunling Lin
- Department of Diagnostic Radiology, Huaqiao University Affiliated Strait Hospital, Quanzhou, China
| | - Chao Liu
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
| | - Weifang Xie
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
| | - Huifang Liu
- Department of General Surgery, Huaqiao University Affiliated Strait Hospital, Quanzhou, China
| | - Siyu Huang
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
| | - Daxin Zhu
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
| | - Lianta Su
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
| | - Yifeng Huang
- Department of Diagnostic Radiology, Huaqiao University Affiliated Strait Hospital, Quanzhou, China
| | - Yuguang Ye
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
- *Correspondence: Yuguang Ye, ; Jianlong Huang,
| | - Jianlong Huang
- Department of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou, China
- Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou, China
- Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou, China
- *Correspondence: Yuguang Ye, ; Jianlong Huang,
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Li G, Togo R, Ogawa T, Haseyama M. Compressed gastric image generation based on soft-label dataset distillation for medical data sharing. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 227:107189. [PMID: 36323177 DOI: 10.1016/j.cmpb.2022.107189] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 07/07/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND OBJECTIVE Sharing of medical data is required to enable the cross-agency flow of healthcare information and construct high-accuracy computer-aided diagnosis systems. However, the large sizes of medical datasets, the massive amount of memory of saved deep convolutional neural network (DCNN) models, and patients' privacy protection are problems that can lead to inefficient medical data sharing. Therefore, this study proposes a novel soft-label dataset distillation method for medical data sharing. METHODS The proposed method distills valid information of medical image data and generates several compressed images with different data distributions for anonymous medical data sharing. Furthermore, our method can extract essential weights of DCNN models to reduce the memory required to save trained models for efficient medical data sharing. RESULTS The proposed method can compress tens of thousands of images into several soft-label images and reduce the size of a trained model to a few hundredths of its original size. The compressed images obtained after distillation have been visually anonymized; therefore, they do not contain the private information of the patients. Furthermore, we can realize high-detection performance with a small number of compressed images. CONCLUSIONS The experimental results show that the proposed method can improve the efficiency and security of medical data sharing.
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Affiliation(s)
- Guang Li
- Graduate School of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
| | - Ren Togo
- Faculty of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
| | - Takahiro Ogawa
- Faculty of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
| | - Miki Haseyama
- Faculty of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-Ku, Sapporo, 060-0814, Japan.
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Hu M, Wang Z, Hu X, Wang Y, Wang G, Ding H, Bian M. High-resolution computed tomography diagnosis of pneumoconiosis complicated with pulmonary tuberculosis based on cascading deep supervision U-Net. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 226:107151. [PMID: 36179657 DOI: 10.1016/j.cmpb.2022.107151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Pulmonary tuberculosis can promote pneumoconiosis deterioration, leading to higher mortality. This study aims to explore the diagnostic value of the cascading deep supervision U-Net (CSNet) model in pneumoconiosis complicated with pulmonary tuberculosis. METHODS A total of 162 patients with pneumoconiosis treated in our hospital were collected as the research objects. Patients were randomly divided into a training set (n = 113) and a test set (n = 49) in proportion (7:3). Based on the high-resolution computed tomography (HRCT), the traditional U-Net, supervision U-Net (SNet), and CSNet prediction models were constructed. Dice similarity coefficients, precision, recall, volumetric overlap error, and relative volume difference were used to evaluate the segmentation model. The area under the receiver operating characteristic curve (AUC) value represents the prediction efficiency of the model. RESULTS There were no statistically significant differences in gender, age, number of positive patients, and dust contact time between patients in the training set and test set (P > 0.05). The segmentation results of CSNet are better than the traditional U-Net model and the SNet model. The AUC value of the CSNet model was 0.947 (95% CI: 0.900∼0.994), which was higher than the traditional U-Net model. CONCLUSION The CSNet based on chest HRCT proposed in this study is superior to the traditional U-Net segmentation method in segmenting pneumoconiosis complicated with pulmonary tuberculosis. It has good prediction efficiency and can provide more clinical diagnostic value.
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Affiliation(s)
- Maoneng Hu
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China.
| | - Zichen Wang
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China
| | - Xinxin Hu
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China
| | - Yi Wang
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China
| | - Guoliang Wang
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China
| | - Huanhuan Ding
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China
| | - Mingmin Bian
- Imaging Center, The Third Clinical College of Hefei of Anhui Medical University, The Third People's Hospital of Hefei, Hefei 230022, China
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Xiong H, Chen H, Xu L, Liu H, Fan L, Tang Q, Cho H. A survey of data element perspective: Application of artificial intelligence in health big data. Front Neurosci 2022; 16:1031732. [PMID: 36389224 PMCID: PMC9641178 DOI: 10.3389/fnins.2022.1031732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/06/2022] [Indexed: 11/26/2022] Open
Abstract
Artificial intelligence (AI) based on the perspective of data elements is widely used in the healthcare informatics domain. Large amounts of clinical data from electronic medical records (EMRs), electronic health records (EHRs), and electroencephalography records (EEGs) have been generated and collected at an unprecedented speed and scale. For instance, the new generation of wearable technologies enables easy-collecting peoples’ daily health data such as blood pressure, blood glucose, and physiological data, as well as the application of EHRs documenting large amounts of patient data. The cost of acquiring and processing health big data is expected to reduce dramatically with the help of AI technologies and open-source big data platforms such as Hadoop and Spark. The application of AI technologies in health big data presents new opportunities to discover the relationship among living habits, sports, inheritances, diseases, symptoms, and drugs. Meanwhile, with the development of fast-growing AI technologies, many promising methodologies are proposed in the healthcare field recently. In this paper, we review and discuss the application of machine learning (ML) methods in health big data in two major aspects: (1) Special features of health big data including multimodal, incompletion, time validation, redundancy, and privacy. (2) ML methodologies in the healthcare field including classification, regression, clustering, and association. Furthermore, we review the recent progress and breakthroughs of automatic diagnosis in health big data and summarize the challenges, gaps, and opportunities to improve and advance automatic diagnosis in the health big data field.
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Affiliation(s)
- Honglin Xiong
- Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai, China
| | - Hongmin Chen
- Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai, China
| | - Li Xu
- Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Li Xu,
| | - Hong Liu
- Business School, University of Shanghai for Science and Technology, Shanghai, China
- Hong Liu,
| | - Lumin Fan
- Business School, University of Shanghai for Science and Technology, Shanghai, China
- Operation Management Department, East Hospital Affiliated to Tongji University, Shanghai, China
| | - Qifeng Tang
- Department of Computer Science and Engineering, East China University of Science and Technology, Shanghai, China
- National Engineering Laboratory for Big Data Distribution and Exchange Technologies, Shanghai, China
- Shanghai Data Exchange Corporation, Shanghai, China
| | - Hsunfang Cho
- National Engineering Laboratory for Big Data Distribution and Exchange Technologies, Shanghai, China
- Shanghai Data Exchange Corporation, Shanghai, China
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Chen Y, Lin Y, Xu X, Ding J, Li C, Zeng Y, Liu W, Xie W, Huang J. Classification of lungs infected COVID-19 images based on inception-ResNet. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 225:107053. [PMID: 35964421 PMCID: PMC9339166 DOI: 10.1016/j.cmpb.2022.107053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/18/2022] [Accepted: 07/30/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Nowadays, COVID-19 is spreading rapidly worldwide, and seriously threatening lives . From the perspective of security and economy, the effective control of COVID-19 has a profound impact on the entire society. An effective strategy is to diagnose earlier to prevent the spread of the disease and prompt treatment of severe cases to improve the chance of survival. METHODS The method of this paper is as follows: Firstly, the collected data set is processed by chest film image processing, and the bone removal process is carried out in the rib subtraction module. Then, the set preprocessing method performed histogram equalization, sharpening, and other preprocessing operations on the chest film. Finally, shallow and high-level feature mapping through the backbone network extracts the processed chest radiographs. We implement the self-attention mechanism in Inception-Resnet, perform the standard classification, and identify chest radiograph diseases through the classifier to realize the auxiliary COVID-19 diagnosis process at the medical level, all in an effort to further enhance the classification performance of the convolutional neural network. Numerous computer simulations demonstrate that the Inception-Resnet convolutional neural network performs CT image categorization and enhancement with greater efficiency and flexibility than conventional segmentation techniques. RESULTS The experimental COVID-19 CT dataset obtained in this paper is the new data for CT scans and medical imaging of normal, early COVID-19 patients and severe COVID-19 patients from Jinyintan hospital. The experiment plots the relationship between model accuracy, model loss and epoch, using ACC, TPR, SPE, F1 score and G-mean to measure the image maps of patients with and without the disease. Statistical measurement values are obtained by Inception-Resnet are 88.23%, 83.45%, 89.72%, 95.53% and 88.74%. The experimental results show that Inception-Resnet plays a more effective role than other image classification methods in evaluation indicators, and the method has higher robustness, accuracy and intuitiveness. CONCLUSION With CT images in the clinical diagnosis of COVID-19 images being widely used and the number of applied samples continuously increasing, the method in this paper is expected to become an additional diagnostic tool that can effectively improve the diagnostic accuracy of clinical COVID-19 images.
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Affiliation(s)
- Yunfeng Chen
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China.
| | - Yalan Lin
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Xiaodie Xu
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Jinzhen Ding
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Chuzhao Li
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Yiming Zeng
- Department of Pulmonary Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China.
| | - Weili Liu
- Software School, Xinjiang University, Urumqi 830091, China
| | - Weifang Xie
- Faculty of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou 362000, China; Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou 362000, China; Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou 362000, China
| | - Jianlong Huang
- Faculty of Mathematics and Computer Science, Quanzhou Normal University, Quanzhou 362000, China; Fujian Provincial Key Laboratory of Data Intensive Computing, Quanzhou 362000, China; Key Laboratory of Intelligent Computing and Information Processing, Fujian Province University, Quanzhou 362000, China
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Liao Z, Song Y, Ren S, Song X, Fan X, Liao Z. VOC-DL: Deep learning prediction model for COVID-19 based on VOC virus variants. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 224:106981. [PMID: 35863125 PMCID: PMC9242688 DOI: 10.1016/j.cmpb.2022.106981] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/11/2022] [Accepted: 06/27/2022] [Indexed: 05/17/2023]
Abstract
BACKGROUND AND OBJECTIVE The ever-mutating COVID-19 has infected billions of people worldwide and seriously affected the stability of human society and the world economic development. Therefore, it is essential to make long-term and short-term forecasts for COVID-19. However, the pandemic situation in different countries and regions may be dominated by different virus variants, and the transmission capacity of different virus variants diversifies. Therefore, there is a need to develop a predictive model that can incorporate mutational information to make reasonable predictions about the current pandemic situation. METHODS This paper proposes a deep learning prediction framework, VOC-DL, based on Variants Of Concern (VOC). The framework uses slope feature method to process the time series dataset containing VOC variant information, and uses VOC-LSTM, VOC-GRU and VOC-BILSTM prediction models included in the framework to predict the daily newly confirmed cases. RESULTS We analyzed daily newly confirmed cases in Italy, South Korea, Russia, Japan and India from April 14th, 2021 to July 3rd, 2021. The experimental results show that all VOC-DL models proposed in this paper can accurately predict the pandemic trend in the medium and long term, and VOC-LSTM model has the best prediction performance, with the highest average determination coefficient R2 of 96.83% in five nations' datasets. The overall prediction has robustness. CONCLUSIONS The experimental results show that VOC-LSTM is the best predictor for such a series of data and has higher prediction accuracy in the long run. At the same time, our VOC-DL framework combining VOC variants has reference significance for predicting other variants in the future.
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Affiliation(s)
- Zhifang Liao
- School of Computer Science and Engineering, Central South University, Changsha 410083, China
| | - Yucheng Song
- School of Computer Science and Engineering, Central South University, Changsha 410083, China
| | - Shengbing Ren
- School of Computer Science and Engineering, Central South University, Changsha 410083, China.
| | - Xiaomeng Song
- School of Computer Science and Engineering, Central South University, Changsha 410083, China
| | - Xiaoping Fan
- Hunan University of Finance and Economics, Changsha 410083, China
| | - Zhining Liao
- Nuffield Health Research Group, Nuffield Health, Ashley Avenue, Epsom, Surrey KT18 5AL, UK.
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Auxiliary Pneumonia Classification Algorithm Based on Pruning Compression. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:8415187. [PMID: 35898478 PMCID: PMC9313959 DOI: 10.1155/2022/8415187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/25/2022] [Accepted: 06/24/2022] [Indexed: 11/17/2022]
Abstract
Pneumonia infection is the leading cause of death in young children. The commonly used pneumonia detection method is that doctors diagnose through chest X-ray, and external factors easily interfere with the results. Assisting doctors in diagnosing pneumonia in patients based on deep learning methods can effectively eliminate similar problems. However, the complex network structure and redundant parameters of deep neural networks and the limited storage and computing resources of clinical medical hardware devices make it difficult for this method to use widely in clinical practice. Therefore, this paper studies a lightweight pneumonia classification network, CPGResNet50 (ResNet50 with custom channel pruning and ghost methods), based on ResNet50 pruning and compression to better meet the application requirements of clinical pneumonia auxiliary diagnosis with high precision and low memory. First, based on the hierarchical channel pruning method, the channel after the convolutional layer in the bottleneck part of the backbone network layer is used as the pruning object, and the pruning operation is performed after its normalization to obtain a network model with a high compression ratio. Second, the pruned convolutional layers are decomposed into original convolutions and cheap convolutions using the optimized convolution method. The feature maps generated by the two convolution parts are combined as the input to the next convolutional layer. Further, we conducted many experiments using pneumonia X-ray medical image data. The results show that the proposed method reduces the number of parameters of the ResNet50 network model from 23.7 M to 3.455 M when the pruning rate is 90%, a reduction is more than 85%, FIOPs dropped from 4.12G to 523.09 M, and the speed increased by more than 85%. The model training accuracy error remained within 1%. Therefore, the proposed method has a good performance in the auxiliary diagnosis of pneumonia and obtained good experimental results.
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Prediction of Bronchopneumonia Inpatients' Total Hospitalization Expenses Based on BP Neural Network and Support Vector Machine Models. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:9275801. [PMID: 35633928 PMCID: PMC9132643 DOI: 10.1155/2022/9275801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/13/2022] [Accepted: 05/05/2022] [Indexed: 01/09/2023]
Abstract
Objective BP neural network (BPNN) model and support vector machine (SVM) model were used to predict the total hospitalization expenses of patients with bronchopneumonia. Methods A total of 355 patients with bronchopneumonia from January 2018 to December 2020 were collected and sorted out. The data set was randomly divided into a training set (n = 249) and a test set (n = 106) according to 7 : 3. The BPNN model and SVM model were constructed to analyze the predictors of total hospitalization expenses. The effectiveness was compared between these two prediction models. Results The top three influencing factors and their importance for predicting total hospitalization cost by the BPNN model were hospitalization days (0.477), age (0.154), and discharge department (0.083). The top 3 factors predicted by the SVM model were hospitalization days (0.215), age (0.196), and marital status (0.172). The area under the curve of these two models is 0.838 (95% CI: 0.755~0.921) and 0.889 (95% CI: 0.819~0.959), respectively. Conclusion Both the BPNN model and SVM model can predict the total hospitalization expenses of patients with bronchopneumonia, but the prediction effect of the SVM model is better than the BPNN model.
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Xue Y, Pyong KH, Oh SS, Tao Y, Liu T. Analysis of the Impacts on the Psychological Changes of Chinese Returning College Students After the Outbreak of the 2019 Coronavirus Disease. Front Public Health 2022; 10:916407. [PMID: 35692323 PMCID: PMC9174602 DOI: 10.3389/fpubh.2022.916407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 04/28/2022] [Indexed: 11/25/2022] Open
Abstract
This work aims to analyze the impacts on the psychological changes of Chinese returning college students after the outbreak of the 2019 coronavirus disease (COVID-19). A questionnaire survey is used to take 1,482 college students who returned to school after the epidemic as the research objects. The Chinese college students' knowledge of the epidemic, alienation in physical education class, school happiness, and expectations for a healthy life in the future are investigated and analyzed. The research results manifest that Chinese returning college students have relatively poor awareness of COVID-19, and the overall degree of alienation in physical education classes after the epidemic is low, with an average score of 3.55 ± 1.018. The overall level of school happiness is high, with an average score of 4.94 ± 0.883; the overall level of expectation for a healthy life in the future is high, with an average score of 3.50 ± 0.840. It denotes that the epidemic has a great psychological impact on returning college students, and it is necessary to strengthen mental health education for college students after COVID-19. It provides a sustainable theoretical reference for the formulation of psychological intervention measures for returning college students.
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Affiliation(s)
- Yingying Xue
- Institute of Physical Education, Yangzhou University, Yangzhou, China
- Sports Science Department, Kyonggi University, Suwon, South Korea
| | - Kwak Han Pyong
- Sports Science Department, Kyonggi University, Suwon, South Korea
| | - Sae Sook Oh
- Sports Science Department, Kyonggi University, Suwon, South Korea
| | - Yingying Tao
- Department of College Physical Education, Communication University of Zhejiang, Hangzhou, China
| | - Taofeng Liu
- Zhengzhou University Physical Education Institute (Main Campus), Zhengzhou, China
- Department of Physical Education, Sangmyung University, Seoul, South Korea
- *Correspondence: Taofeng Liu
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Computed tomography of ground glass nodule image based on fuzzy C-means clustering algorithm to predict invasion of pulmonary adenocarcinoma. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Different Scales of Medical Data Classification Based on Machine Learning Techniques: A Comparative Study. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12020919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In recent years, medical data have vastly increased due to the continuous generation of digital data. The different forms of medical data, such as reports, textual, numerical, monitoring, and laboratory data generate the so-called medical big data. This paper aims to find the best algorithm which predicts new medical data with high accuracy, since good prediction accuracy is essential in medical fields. To achieve the study’s goal, the best accuracy algorithm and least processing time algorithm are defined through an experiment and comparison of seven different algorithms, including Naïve bayes, linear model, regression, decision tree, random forest, gradient boosted tree, and J48. The conducted experiments have allowed the prediction of new medical big data that reach the algorithm with the best accuracy and processing time. Here, we find that the best accuracy classification algorithm is the random forest with accuracy values of 97.58%, 83.59%, and 90% for heart disease, M-health, and diabetes datasets, respectively. The Naïve bayes has the lowest processing time with values of 0.078, 7.683, and 22.374 s for heart disease, M-health, and diabetes datasets, respectively. In addition, the best result of the experiment is obtained by the combination of the CFS feature selection algorithm with the Random Forest classification algorithm. The results of applying RF with the combination of CFS on the heart disease dataset are as follows: Accuracy of 90%, precision of 83.3%, sensitivity of 100, and consuming time of 3 s. Moreover, the results of applying this combination on the M-health dataset are as follows: Accuracy of 83.59%, precision of 74.3%, sensitivity of 93.1, and consuming time of 13.481 s. Furthermore, the results on the diabetes dataset are as follows: Accuracy of 97.58%, precision of 86.39%, sensitivity of 97.14, and consuming time of 56.508 s.
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Zhou H, Li Y, Li J, Wu T, Chen Y, Shen Z. Radiation dosimetric influence by different target volume definition in Cyberknife lung cancer and abdomen stereotactic body radiotherapy. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2021. [DOI: 10.1080/16878507.2021.1967045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Han Zhou
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
- Department of Radiation Oncology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yikun Li
- Department of Radiation Oncology, Jinling Hospital, Nanjing University, Nanjing, China
| | - Jing Li
- Department of Radiation Oncology, Jinling Hospital, Nanjing University, Nanjing, China
| | - Tiancong Wu
- Department of Radiation Oncology, Jinling Hospital, Nanjing University, Nanjing, China
| | - Ying Chen
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Zetian Shen
- Department of Radiation Oncology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China
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