Journal of Radiation Research and Applied Sciences最新文献

{"title":"The impact of radiologists’ characteristics on the detection of COVID-19 in chest CT scans","authors":"Abdulaziz S. Alshabibi ,&nbsp;Moayyad E. Suleiman ,&nbsp;Sultan F. Alhujaili ,&nbsp;Salman M. Albeshan ,&nbsp;Patrick C. Brennan","doi":"10.1016/j.jrras.2024.101170","DOIUrl":"10.1016/j.jrras.2024.101170","url":null,"abstract":"<div><h3>Purpose</h3><div>To retrospectively assess the relationships between radiologists’ characteristics and their performance in interpreting chest CTs for COVID-19 detection.</div></div><div><h3>Methods</h3><div>Using DetectedX software, performance data were collected online from 74 radiologists from 29 countries, who each interpreted 30 anonymized digital chest CTs (15 positive and 15 negative scans for COVID-19). Radiologist-specific information was also collected: radiology experience, radiological specialty, number of lung CTs read weekly, familiarity with and education about COVID-19 presentation, and suspected COVID-19 cases seen weekly. The influence of this radiologist-specific information on the radiologists’ sensitivity, specificity, and ROC AUC was determined using regression analysis.</div></div><div><h3>Results</h3><div>Radiologists without respiratory imaging specialization had greater ROC AUCs (0.83 vs. 0.70, p = .006) and sensitivities (74.0% vs. 47.7%, p = .002) than their specialized peers. Radiologists without COVID-19 case encounters had greater sensitivity (80.6% vs. 63.1%, p = .017) but lower specificity (71.1% vs. 83.4%, p = .014) than those who encountered at least one case weekly.</div></div><div><h3>Conclusion</h3><div>Specialization and prior experience with COVID-19 may impact the interpretation of suspected COVID-19 chest CTs.</div></div><div><h3>Clinical significance</h3><div>These results show the importance of diverse expertise and continuous training in managing novel diseases like COVID-19. Incorporating varied perspectives and experiences could enhance diagnostic accuracy and ensure a more comprehensive approach to disease management. In the case of novel diseases, specialization may not provide the same advantage as with more familiar disorders. The diagnostic value of specific experience with a novel disorder may help to compensate for a lack of specialization in the field, particularly in emergent situations. While specialization is important, generalization also holds value and utility in appropriate contexts.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101170"},"PeriodicalIF":1.7,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of thermal radiation on TiO2-Cu/water hybrid nanofluid: A finite difference discretization","authors":"J. Manigandan ,&nbsp;D. Iranian ,&nbsp;Aisha M. Alqahtani ,&nbsp;Ilyas Khan ,&nbsp;Mohsen Bakouri ,&nbsp;Manahil A.M. Ashmaig","doi":"10.1016/j.jrras.2024.101173","DOIUrl":"10.1016/j.jrras.2024.101173","url":null,"abstract":"<div><div>This article aims to discover the double diffusive convection in TiO₂-Cu/Water hybrid nanofluid. The impacts of heat generation and chemical reactions are also considered in the presence of a magnetic field. A collection of hybrid nanofluids of titanium oxide (TiO₂) and copper (Cu) with a nanoparticle volume fraction <span><math><mrow><mo>(</mo><mi>ϕ</mi><mo>)</mo></mrow></math></span> of size equal to 0.05 is taken. The governing equations of the infinite vertical plate flow model, the non-dimensional governing equations, were solved by the explicit finite difference approach of the Dufort-Frankel method, which is employed numerically in MATLAB. To illustrate the main features of the solution, numerical calculators and graphs are used to illustrate the characteristics of fluid stream velocity, heat, and mass transfer under dissimilar parametric values. The primary findings and significance of this study indicates that Skin friction increases with increasing values of mass Grashof number, thermal Grashof number, and thermal radiation, while its intensifications decline with increasing values of magnetic field and Schmidt number. This study also discusses the limitations and challenges of utilizing hybrid nanofluids in practical applications, providing valuable insights for effective decision-making.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101173"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coronary computed tomographic angiography predicts crossing through chronic total occlusion within three guidewires","authors":"Anxiaonan Zhang ,&nbsp;Xiaogang Li ,&nbsp;Jianhua Zhang ,&nbsp;Zhenguo Wang ,&nbsp;Yu Sun ,&nbsp;Qiuyue Jin ,&nbsp;Rongrong Zhang ,&nbsp;Hongrui You ,&nbsp;Libo Zhang ,&nbsp;Benqiang Yang","doi":"10.1016/j.jrras.2024.101166","DOIUrl":"10.1016/j.jrras.2024.101166","url":null,"abstract":"<div><h3>Background</h3><div>Coronary computed tomography angiography (CCTA) is a valuable non-invasive method for the diagnosis and treatment of coronary artery disease, especially providing important clinical decision-making basis for percutaneous coronary intervention (PCI) of chronic total occlusion (CTO). However, there is no data to discuss whether CCTA can predict the success rate of crossing through occlusive lesions within 3 guidewires.</div></div><div><h3>Objective</h3><div>The aim of this study was to establish a scoring model based on CCTA images to predict the success rate of CTO-PCI within 3 guidewires for grading treatment difficulty.</div></div><div><h3>Methods</h3><div>Data including 267 CTO lesions in 252 patients with pre-procedural CCTA were analyzed. Successfully crossing through the lesion within 3 guidewires was set as a new endpoint to eliminate operator bias and estimate surgical costs. The Guidewires of CTO (GW-CTO) score was determined by assigning an appropriate integer point for each independent predictor of this endpoint and summing all points accrued.</div></div><div><h3>Results</h3><div>72.3% reached the new endpoint. We identified 5 predictors. Including blunt proximal stump, both proximal and distal branches, occluded segmental curvature&gt;45°, length of occlusion<strong>≥</strong>20 mm, and calcified plaque burden<strong>≥</strong>0.125. With the GW-CTO score rising from 0 to 5, the success rate dropped from 98.83% to 12.50%. The CTO-PCI difficulty was stratified into three grades: easy (0–1), intermediate (2–3), and difficult (4–5). The GW-CTO score yielded good predictive results, with an area under receiver-operator characteristic (ROC) curve of 0.87.</div></div><div><h3>Conclusion</h3><div>This model is very novel and presents a new perspective to predict the probability of successfully passing through CTO lesions within 3 guidewires. This may help grade the difficulty of CTO-PCI and determining the cost efficiency.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101166"},"PeriodicalIF":1.7,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of clavicle fracture after martial arts training based on 3D segmentation and multi-perspective fusion","authors":"Guochang Liu ,&nbsp;Yuedan Wu ,&nbsp;Zujun Zhang ,&nbsp;Zheng Wang","doi":"10.1016/j.jrras.2024.101164","DOIUrl":"10.1016/j.jrras.2024.101164","url":null,"abstract":"<div><div>To improve the diagnosis efficiency of clavicle fractures, a Diagnosis Model of Clavicle Fracture Based on 3D Segmentation and Multi Perspective Fusion (3Ds MPF) is proposed in the experiment. By performing 3D segmentation on clavicle images, key layer images are extracted, and multi-perspective image data are fused and output to achieve accurate classification and diagnosis results. The results show that on the relevant dataset, the loss function value of the constructed model is less than 0.01, and the calculation accuracy is as high as 0.999. The average classification accuracy in actual use exceeds 90%, and it can capture the majority of fracture features in clavicle computed tomography images. The above results indicate that the model constructed by the research institute can significantly improve the judgment efficiency of computed tomography images, which helps to enhance the detection and diagnosis of clinical fracture conditions. The experimental results have helped improve the clinical diagnostic efficiency of fracture detection work.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101164"},"PeriodicalIF":1.7,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of ultrasonic imaging technology in beef cattle breeding management","authors":"Lede Su ,&nbsp;Suhebateer Tomed ,&nbsp;Otgonjargal Sambuu ,&nbsp;Xiunan Li ,&nbsp;Hui Bai ,&nbsp;P. Erdenetogtokh ,&nbsp;Yanyan Yang","doi":"10.1016/j.jrras.2024.101167","DOIUrl":"10.1016/j.jrras.2024.101167","url":null,"abstract":"<div><h3>Objective</h3><div>The aim of this study was to explore in depth the application of ultrasonic imaging technology in beef cattle reproduction management in order to improve the efficiency and management of beef cattle reproduction.</div></div><div><h3>Methods</h3><div>In this study, ultrasonographic diagnostic techniques were used to follow up the follicles and corpus luteum in the uterus and ovaries of dairy cows at different stages of development as well as at different periods of gestation of dairy cows, and to detect the effects of different fattening conditions of the cows and the number of litters on the sitting rate.</div></div><div><h3>Results</h3><div>The diameter of mature follicles was generally around 16 mm, and the majority of them were 11–20 mm in diameter. Ultrasonography was used to detect early pregnancy in cows at 33–55 d. Ultrasound was used to identify the sex of the foetus most easily at 70–80 d. The results of this study showed that the sex of the foetus was most easily identified in cows at 70–80 d. The fat of the cow and the number of births also had a significant impact on pregnancy rates.</div></div><div><h3>Conclusion</h3><div>Ultrasound imaging technology has an important application value in the management of beef cattle reproduction, and in pregnancy detection, it can achieve early and accurate diagnosis, improve the accuracy of detection, and differentiate between heifers in estrus and pregnant heifers. In addition, it can also be used for foetal sex identification at a specific period of time, providing a basis for breeding programmes.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101167"},"PeriodicalIF":1.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of resistance exercise training combined with CT image evaluation in postoperative functional rehabilitation and fracture risk prediction of elderly femurs","authors":"Geng Chen ,&nbsp;Guochang Liu ,&nbsp;Yuedan Wu ,&nbsp;Yongmiao Sun","doi":"10.1016/j.jrras.2024.101159","DOIUrl":"10.1016/j.jrras.2024.101159","url":null,"abstract":"<div><h3>Objective</h3><div>To evaluate the overall functional recovery of femoral patients, improve recovery ability, and prevent fractures in the elderly.</div></div><div><h3>Methods</h3><div>A group of elderly femoral postoperative participants were selected and randomly divided into resistance exercise training and routine rehabilitation training. Simultaneously, a control group (without a history of fractures) and a fracture group (with a history of fractures) were designed to predict fracture risk. Finally, computerized tomography was used to evaluate the functional rehabilitation status.</div></div><div><h3>Results</h3><div>The resistance exercise training group showed significantly better performance in functional rehabilitation and fracture risk prediction than the control group, and the decrease in Barthel index at 12 weeks after surgery in this group was 6.25 (<em>P</em> &gt; 0.001). The age, gender, and volumetric bone density between the control group and the fracture group showed <em>P</em> &gt; 0.001, and the differences were statistically significant. The average age of the control group was significantly higher than that of the fracture group, and the proportion of males in the fracture group was significantly higher than that of the control group. The intramuscular fat content of the iliopsoas muscle in the fracture group was significantly lower than that in the control group, <em>P</em> = 0.004. This indicated that lower intramuscular fat content of the iliopsoas muscle was associated with higher fracture risk, as participants with lower intramuscular fat content of the iliopsoas muscle had less bone protection, resulting in an increased risk of fracture. The difference in body mass index between the two groups was not statistically significant, <em>P</em> = 0.737, indicating that the impact of this parameter on fracture risk was not significant in this study.</div></div><div><h3>Conclusion</h3><div>Resistance exercise training combined with CT image evaluation is an effective rehabilitation strategy with high clinical application value. This study provides reliable empirical evidence for the application of resistance exercise training and the combination of CT image evaluation, and provides guidance for the optimization of clinical rehabilitation strategies.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101159"},"PeriodicalIF":1.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterizing non-similar analysis for chemically reactive magnetized Sutterby bidirectional fluid flow capturing features of non-linear thermal radiation","authors":"Waqar Azeem Khan ,&nbsp;Zubair Hussain ,&nbsp;Neyara Radwan ,&nbsp;Mehboob Ali ,&nbsp;Nargis Jamal","doi":"10.1016/j.jrras.2024.101152","DOIUrl":"10.1016/j.jrras.2024.101152","url":null,"abstract":"<div><div>In the field of engineering, manufacturing industry, biologically-inspired propulsion systems, augmenting conventional fluid heat-transfer, moisture and drying the chemical reactions are getting the utmost importance. In the last few decades, the study of non-linear materials has attracted a lot of attention in the realm of science. These fluids have importance in food industry, plastic thawing, material processing, pharmaceutical goods, polymeric liquids, biochemical engineering, toxic, nuclear plants, furthermore the mechanical applications, and polymeric liquids promote the investigation of these fluids. The characteristics of three-dimensional Sutterby fluid flow on a bidirectional expansion surface in the context of heterogeneous homogeneous processes have been explored in the current research article. Here in this work, we used an improved heterogeneous homogeneous reactions model with the same diffusion of the reactant and autocatalytic. In addition, heat transfer analysis is performed in the existence of non-linear thermal radiation and convective boundary conditions. By using a suitable similarity approach we reduced the introduced basic non-linear problem in to a self-similar form. Subsequently, the extended non-linear problem was systematically handled employing the BVP4C approach. We also investigated the influence of the related physical parameters on the profiles of concentration and temperature. The graphs demonstrate how a rise in the homogeneous process parameter causes the concentration distribution to drop concurrently with an increase predicated on the Schmidt number. Furthermore, the estimates of the Prandtl number are observed to grow with the rate of surface heat transfer.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101152"},"PeriodicalIF":1.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiation shielding and energy absorption parameters of SiO2–Na2O–Al2O3- CaO-CaF2 silicate glasses","authors":"M.S. Al-Buriahi ,&nbsp;Z.A. Alrowaili ,&nbsp;Sultan J. Alsufyani ,&nbsp;Amani Alalawi ,&nbsp;I.O. Olarinoye ,&nbsp;Chahkrit Sriwunkum ,&nbsp;Norah Salem Alsaiari","doi":"10.1016/j.jrras.2024.101153","DOIUrl":"10.1016/j.jrras.2024.101153","url":null,"abstract":"<div><div>Glasses with nominal compositions of (68-x) SiO₂–25Na₂O–2Al₂O₃- xCaO-5CaF₂ (x = 0, 5, 10, 20, representing SiNAlCF1, SiNAlCF2, SiNAlCF3, and SiNAlCF4, respectively) were reported for their gamma-photon shielding and dosimetry functions using theoretical calculations starting with the use of the NIST cross-section library. Several parameters (including the mass attenuation (MAC) and energy absorption coefficient (MEAC), effective atomic number and electron density (Z_eff and N_eff), gamma exposure constant (Γ), exposure rate (D_r) and exposure buildup factor (EBF) among others) were estimated for energies within 0.015–15 MeV. The range of MAC for SiNAlCF1, SiNAlCF2, SiNAlCF3, and SiNAlCF4 is 0.0208–5.9944, 0.0210–6.7179, 0 0.0212–7.4460, and 0.0217–8.9164 cm²/g, respectively. The values of Z_eff and N_eff vary within the ranges 10.13–12.74 and 2.98–3.74 (10²³ electron/g) for SiNAlCF1, 10.27–13.42 and 2.98–3.89 (10²³ electron/g) for SiNAlCF2, 10.41–14.03 and 2.98–4.01 (10²³ electron/g) for SiNAlCF3, and 10.71–15.07 and 2.98–4.19 (10²³ electron/g) for SiNAlCF4. The glass with the higher CaO content interacts more with gamma rays and attenuates and absorbs photons better. For 15 mm thick SiNAlCF1-SiNAlCF4, D_r is about 3.66, 4.10, 4.56, and 5.47 MR/h, respectively. The addition of CaO thus improves the shielding efficacy of the SiNAlCF glasses in the narrow and broad beam geometry situations. The SiNAlCF glasses, in comparison to some conventional and recently recommended glass shields, contain nontoxic component, are cheaper, and effective (especially at higher gamma-photon energies). they are thus recommended for gamma-ray protection applications in narrow and broad beam shielding scenarios.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101153"},"PeriodicalIF":1.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of NaF on electrical and radiation shielding properties of CdO-B2O3 glass system","authors":"Sheik Ahammed ,&nbsp;E.O. Echeweozo ,&nbsp;B. Srinivas ,&nbsp;A.V. Lalitha Phani ,&nbsp;G. Bhikshamaiah ,&nbsp;Md Shareefuddin ,&nbsp;Norah Alomayrah ,&nbsp;M.S. Al-Buriahi","doi":"10.1016/j.jrras.2024.101156","DOIUrl":"10.1016/j.jrras.2024.101156","url":null,"abstract":"<div><div>xNaF-(40-x)CdO-60B₂O₃ glass system (NFCBx) was prepared using the melt quenching technique, where x = 5, 10, 15. 20, 25, 30 35 mol %. All prepared samples were characterized using impedance spectroscopy in the frequency range of 50Hz to 5 MHz. Moreover, these samples were subjected to a gamma radiation shielding test using the WinCOM computer program across a wide photon energy range. The impedance spectra from room temperature to 623K with an increment of 50K were recorded. Parameters like bulk resistance (R_b), bulk capacitance (C_b), relaxation time, activation energies, mass attenuation coefficient and Effective Atomic Number were evaluated. The conductivity of the prepared glass samples was independent of frequency at lower frequencies. Still, it varied at higher frequencies. The bulk capacitance increases with an increase in temperature and NaF concentration. Activation energy values are found to decrease as NaF concentration rises. The NFCB3 sample exhibited significantly higher mass attenuation coefficient and Effective Atomic Number values than other commercial SCHOTT glasses across most energy ranges. Hence, NFCB3 glass material is recommended for specialized applications in medical and nuclear settings where excellent dielectric, impedance, radiation attenuation properties and transparency are crucial.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101156"},"PeriodicalIF":1.7,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automatic grading diabetic retinopathy in color fundus image: Cascaded hybrid attention network","authors":"Yanxia Liu","doi":"10.1016/j.jrras.2024.101160","DOIUrl":"10.1016/j.jrras.2024.101160","url":null,"abstract":"<div><div>Deep learning techniques have been introduced to automatically assess Diabetic Retinopathy (DR), a prevalent vision-impairing condition, aiding ophthalmologists in formulating personalized treatment strategies for patients. However, most Artificial Intelligence (AI) for grading DR are constrained by their limited capacity to discern lesion details or necessitate manual lesion labeling, leading to suboptimal assessment outcomes or increased workload. To enhance both efficiency and precision in grading, this paper proposes a Cascaded Hybrid Attention Network (CHAN) for DR grading. Residual Hybrid Attention Modules (RHAM) is designed to extract features, incorporating several cascaded Hybrid Attention Module (HAM) and a convolution layer with a residual connection. The approach integrates channel attention with multi-head self-attention, leveraging their combined strengths: global statistical analysis and robust local adaptation. The grading score is derived by integrating DR features across various layers, from shallow to deep. The CHAN model, tested on the MESSIDOR dataset, demonstrates superior accuracy in DR grading, consistently surpassing current leading methods across evaluation metrics.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"17 4","pages":"Article 101160"},"PeriodicalIF":1.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}