BJR open最新文献

{"title":"Differences of white matter structure for diffusion kurtosis imaging using voxel-based morphometry and connectivity analysis.","authors":"Yuki Kanazawa, Natsuki Ikemitsu, Yuki Kinjo, Masafumi Harada, Hiroaki Hayashi, Yo Taniguchi, Kosuke Ito, Yoshitaka Bito, Yuki Matsumoto, Akihiro Haga","doi":"10.1093/bjro/tzad003","DOIUrl":"10.1093/bjro/tzad003","url":null,"abstract":"<p><strong>Objectives: </strong>In a clinical study, diffusion kurtosis imaging (DKI) has been used to visualize and distinguish white matter (WM) structures' details. The purpose of our study is to evaluate and compare the diffusion tensor imaging (DTI) and DKI parameter values to obtain WM structure differences of healthy subjects.</p><p><strong>Methods: </strong>Thirteen healthy volunteers (mean age, 25.2 years) were examined in this study. On a 3-T MRI system, diffusion dataset for DKI was acquired using an echo-planner imaging sequence, and T₁-weghted (T₁w) images were acquired. Imaging analysis was performed using Functional MRI of the brain Software Library (FSL). First, registration analysis was performed using the T₁w of each subject to MNI152. Second, DTI (eg, fractional anisotropy [FA] and each diffusivity) and DKI (eg, mean kurtosis [MK], radial kurtosis [RK], and axial kurtosis [AK]) datasets were applied to above computed spline coefficients and affine matrices. Each DTI and DKI parameter value for WM areas was compared. Finally, tract-based spatial statistics (TBSS) analysis was performed using each parameter.</p><p><strong>Results: </strong>The relationship between FA and kurtosis parameters (MK, RK, and AK) for WM areas had a strong positive correlation (FA-MK, <i>R</i>² = 0.93; FA-RK, <i>R</i>² = 0.89) and a strong negative correlation (FA-AK, <i>R</i>² = 0.92). When comparing a TBSS connection, we found that this could be observed more clearly in MK than in RK and FA.</p><p><strong>Conclusions: </strong>WM analysis with DKI enable us to obtain more detailed information for connectivity between nerve structures.</p><p><strong>Advances in knowledge: </strong>Quantitative indices of neurological diseases were determined using segmenting WM regions using voxel-based morphometry processing of DKI images.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"6 1","pages":"tzad003"},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10860519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139731180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The CT knee arthrogram revisited.","authors":"Priyank Chatra","doi":"10.1093/bjro/tzad007","DOIUrl":"10.1093/bjro/tzad007","url":null,"abstract":"<p><p>The CT arthrogram is an underrated diagnostic study of the joint. Although MRI is considered superior to CT in joint imaging due to its higher resolution, CT arthrograms provide unique insights into the knee joint, with simultaneous dynamic assessment and an option for management in some conditions. In this pictorial essay, I will discuss the standard techniques and various pathologies affecting the knee joint and their CT arthrography appearance.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"6 1","pages":"tzad007"},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10860528/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139731183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiotherapy dose escalation using pre-treatment diffusion-weighted imaging in locally advanced rectal cancer: a planning study.","authors":"Nathan Hearn, Alexandria Leppien, Patrick O'Connor, Katelyn Cahill, Daisy Atwell, Dinesh Vignarajah, Myo Min","doi":"10.1093/bjro/tzad001","DOIUrl":"10.1093/bjro/tzad001","url":null,"abstract":"<p><strong>Objectives: </strong>Diffusion-weighted MRI (DWI) may provide biologically relevant target volumes for dose-escalated radiotherapy in locally advanced rectal cancer (LARC). This planning study assessed the dosimetric feasibility of delivering hypofractionated boost treatment to intra-tumoural regions of restricted diffusion prior to conventional long-course radiotherapy.</p><p><strong>Methods: </strong>Ten patients previously treated with curative-intent standard long-course radiotherapy (50 Gy/25#) were re-planned. Boost target volumes (<i>BTVs</i>) were delineated semi-automatically using 40th centile intra-tumoural apparent diffusion coefficient value with expansions (anteroposterior 11 mm, transverse 7 mm, craniocaudal 13 mm). Biased-dosed combined plans consisted of a single-fraction volumetric modulated arc therapy flattening-filter-free (VMAT-FFF) boost (phase 1) of 5, 7, or 10 Gy before long-course VMAT (phase 2). Phase 1 plans were assessed with reference to stereotactic conformality and deliverability measures. Combined plans were evaluated with reference to standard long-course therapy dose constraints.</p><p><strong>Results: </strong>Phase 1 BTV dose targets at 5/7/10 Gy were met in all instances. Conformality constraints were met with only 1 minor violation at 5 and 7 Gy. All phase 1 and combined phase 1 + 2 plans passed patient-specific quality assurance. Combined phase 1 + 2 plans generally met organ-at-risk dose constraints. Exceptions included high-dose spillage to bladder and large bowel, predominantly in cases where previously administered, clinically acceptable non-boosted plans also could not meet constraints.</p><p><strong>Conclusions: </strong>Targeted upfront LARC radiotherapy dose escalation to DWI-defined is feasible with appropriate patient selection and preparation.</p><p><strong>Advances in knowledge: </strong>This is the first study to evaluate the feasibility of DWI-targeted upfront radiotherapy boost in LARC. This work will inform an upcoming clinical feasibility study.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"6 1","pages":"tzad001"},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10860507/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139731181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Body weight-based iodinated contrast immersion timing for human fetal postmortem microfocus computed tomography.","authors":"Ian C Simcock, Susan C Shelmerdine, John Ciaran Hutchinson, Neil J Sebire, Owen J Arthurs","doi":"10.1093/bjro/tzad006","DOIUrl":"10.1093/bjro/tzad006","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study was to evaluate the length of time required to achieve full iodination using potassium tri-iodide as a contrast agent, prior to human fetal postmortem microfocus computed tomography (micro-CT) imaging.</p><p><strong>Methods: </strong>Prospective assessment of optimal contrast iodination was conducted across 157 human fetuses (postmortem weight range 2-298 g; gestational age range 12-37 weeks), following micro-CT imaging. Simple linear regression was conducted to analyse which fetal demographic factors could produce the most accurate estimate for optimal iodination time.</p><p><strong>Results: </strong>Postmortem body weight (<i>r</i>² = 0.6435) was better correlated with iodination time than gestational age (<i>r</i>² = 0.1384), producing a line of best fit, <i>y</i> = [0.0304 × body weight (g)] - 2.2103. This can be simplified for clinical use whereby immersion time (days) = [0.03 × body weight (g)] - 2.2. Using this formula, for example, a 100-g fetus would take 5.2 days to reach optimal contrast enhancement.</p><p><strong>Conclusions: </strong>The simplified equation can now be used to provide estimation times for fetal contrast preparation time prior to micro-CT imaging and can be used to manage service throughput and parental expectation for return of their fetus.</p><p><strong>Advances in knowledge: </strong>A simple equation from empirical data can now be used to estimate preparation time for human fetal postmortem micro-CT imaging.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"6 1","pages":"tzad006"},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10860501/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139731177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of artificial intelligence on the work of the medical physicist in radiotherapy practice: a short review.","authors":"Emmanuel Fiagbedzi, Francis Hasford, Samuel Nii Tagoe","doi":"10.1259/bjro.20230003","DOIUrl":"10.1259/bjro.20230003","url":null,"abstract":"<p><p>There have been many applications and influences of Artificial intelligence (AI) in many sectors and its professionals, that of radiotherapy and the medical physicist is no different. AI and technological advances have necessitated changing roles of medical physicists due to the development of modernized technology with image-guided accessories for the radiotherapy treatment of cancer patients. Given the changing role of medical physicists in ensuring patient safety and optimal care, AI can reshape radiotherapy practice now and in some years to come. Medical physicists' roles in radiotherapy practice have evolved to meet technology for the management of better patient care in the age of modern radiotherapy. This short review provides an insight into the influence of AI on the changing role of medical physicists in each specific chain of the workflow in radiotherapy in which they are involved.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"5 1","pages":"20230003"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10630976/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pseudo dual-energy CT-derived iodine mapping using single-energy CT data based on a convolution neural network.","authors":"Yuki Yuasa, Takehiro Shiinoki, Koya Fujimoto, Hidekazu Tanaka","doi":"10.1259/bjro.20220059","DOIUrl":"10.1259/bjro.20220059","url":null,"abstract":"<p><strong>Objective: </strong>The objectives of this study are: (1) to develop a convolutional neural network model that yields pseudo high-energy CT (CT_{pseudo_high}) from simple image processed low-energy CT (CT_low) images, and (2) to create a pseudo iodine map (IM_pseudo) and pseudo virtual non-contrast (VNC_pseudo) images for thoracic and abdominal regions.</p><p><strong>Methods: </strong>Eighty patients who underwent dual-energy CT (DECT) examinations were enrolled. The data obtained from 55, 5, and 20 patients were used for training, validation, and testing, respectively. The ResUnet model was used for image generation model and was trained using CT_low and high-energy CT (CT_high) images. The proposed model performance was evaluated by calculating the CT values, image noise, mean absolute errors (MAEs), and histogram intersections (HIs).</p><p><strong>Results: </strong>The mean difference in the CT values between CT_{pseudo_high} and CT_high images were less than 6 Hounsfield unit (HU) for all evaluating patients. The image noise of CT_{pseudo_high} was significantly lower than that of CT_high. The mean MAEs was less than 15 HU, and HIs were almost 1.000 for all the patients. The evaluation metrics of IM and VNC exhibited the same tendency as that of the comparison between CT_{pseudo_high} and CT_high images.</p><p><strong>Conclusions: </strong>Our results indicated that the proposed model enables to obtain the DECT images and material-specific images from only single-energy CT images.</p><p><strong>Advances in knowledges: </strong>We constructed the CNN-based model which can generate pseudo DECT image and DECT-derived material-specific image using only simple image-processed CT_low images for the thoracic and abdominal regions.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"5 1","pages":"20220059"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10630979/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of artificial intelligence in radiotherapy clinical practice.","authors":"Guillaume Landry, Christopher Kurz, Alberto Traverso","doi":"10.1259/bjro.20230030","DOIUrl":"10.1259/bjro.20230030","url":null,"abstract":"<p><p>This review article visits the current state of artificial intelligence (AI) in radiotherapy clinical practice. We will discuss how AI has a place in the modern radiotherapy workflow at the level of automatic segmentation and planning, two applications which have seen real-work implementation. A special emphasis will be placed on the role AI can play in online adaptive radiotherapy, such as performed at MR-linacs, where online plan adaptation is a procedure which could benefit from automation to reduce on-couch time for patients. Pseudo-CT generation and AI for motion tracking will be introduced in the scope of online adaptive radiotherapy as well. We further discuss the use of AI for decision-making and response assessment, for example for personalized prescription and treatment selection, risk stratification for outcomes and toxicities, and AI for quantitative imaging and response assessment. Finally, the challenges of generalizability and ethical aspects will be covered. With this, we provide a comprehensive overview of the current and future applications of AI in radiotherapy.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"5 1","pages":"20230030"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10630974/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transperineal laser ablation (TPLA) with ultrasound/MRI fusion guidance in the treatment of localized radiotherapy-resistant prostate cancer.","authors":"Guglielmo Manenti, Marco Nezzo, Colleen Patricia Ryan, Federico Romeo Fraioli, Beatrice Carreri, Paola Elda Gigliotti, Cecilia Angeloni, Francesca Di Pietro, Martina De Angeli, Tommaso Perretta, Rolando Maria D'Angelillo, Francesco Giuseppe Garaci","doi":"10.1259/bjro.20230042","DOIUrl":"10.1259/bjro.20230042","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study was to assess the technical feasibility, safety, and efficacy of transperineal laser ablation (TPLA) guided by ultrasound/magnetic resonance (MR) fusion as a salvage treatment for refractory focal prostate cancer.</p><p><strong>Methods: </strong>A total of five patients who had undergone radiation therapy (RT) for prostate carcinoma and biochemical recurrence, confirmed by both prostate-specific antigen (PSA) levels and MRI (3T mpMRI), were enrolled in this study. Focal ablation was performed using a 1064 nm diode laser. Post-ablation follow-up was conducted for a duration of 18 months, which included regular PSA sampling, 3T mpMRI, and ultrasound/MR fusion-guided biopsies systematic and targeted at the site of the focal treatment.</p><p><strong>Results: </strong>The focal ablation procedure was carried out in an outpatient setting regimen with optimal clinical and biochemical outcomes. No recurrence was detected throughout the follow-up period.</p><p><strong>Conclusion: </strong>TPLA focal treatment effectively manages local recurrences of RT refractory prostate cancer without side-effects or complications. Preservation of quality of life and functional outcomes, along with <i>a</i> >70% reduction in PSA, were achieved.</p><p><strong>Advances in knowledge: </strong>Our study investigated TPLA as a salvage treatment for low-risk recurrent prostate cancer after RT, demonstrating its tolerability, feasibility, and effectiveness.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"5 1","pages":"20230042"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10630978/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does the availability of prior mammograms improve radiologists' observer performance?-a scoping review.","authors":"Judith D Akwo, Phuong Trieu, Sarah Lewis","doi":"10.1259/bjro.20230038","DOIUrl":"10.1259/bjro.20230038","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this review was to examine the impact of previous mammogram availability on radiologists' performance from screening populations and experimental studies.</p><p><strong>Materials and methods: </strong>A search of the literature was conducted using five databases: MEDLINE, PubMed, Web of Science, ScienceDirect, and CINAHL as well as Google and reference lists of articles. Keywords were combined with \"AND\" or \"OR\" or \"WITH\" and included \"prior mammograms, diagnostic performance, initial images, diagnostic efficacy, subsequent images, previous imaging, and radiologist's performance\". Studies that assessed the impact of previous mammogram availability on radiologists' performance were reviewed. The Standard for Reporting Diagnostic Accuracy guidelines was used to critically appraise individual sources of evidence.</p><p><strong>Results: </strong>A total of 15 articles were reviewed. The sample of mammogram cases used across these studies varied from 36 to 1,208,051. Prior mammograms did not affect sensitivity [with priors: 62-86% (mean = 73.3%); without priors: 69.4-87.4% (mean = 75.8%)] and cancer detection rate, but increased specificity [with priors: 72-96% (mean = 87.5%); without priors: 63-87% (mean = 80.5%)] and reduced false-positive rates [with priors: 3.7 to 36% (mean = 19.9%); without priors 13.3-49% (mean = 31.4%)], recall rates [with priors: 3.8-57% (mean = 26.6%); without priors: [4.9%-67.5% (mean = 37.9%)], and abnormal interpretation rate decreased by 4% with priors. Evidence for the associations between the availability of prior mammograms and positive-predictive value, area under the curve (AUC) from the receiver operating characteristic curve (ROC) and localisation ROC AUC, and positive-predictive value of recall is limited and unclear.</p><p><strong>Conclusion: </strong>Availability of prior mammograms reduces recall rates, false-positive rates, abnormal interpretation rates, and increases specificity without affecting sensitivity and cancer detection rate.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"5 1","pages":"20230038"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10630973/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of body compositions on contrast medium enhancement in chest CT: a randomised controlled trial.","authors":"Mette Karen Henning, Trond Mogens Aaløkken, Anne Catrine Martinsen, Safora Johansen","doi":"10.1259/bjro.20230054","DOIUrl":"10.1259/bjro.20230054","url":null,"abstract":"<p><strong>Objective: </strong>To compare a fixed-volume contrast medium (CM) protocol with a combined total body weight (TBW) and body composition-tailored protocol in chest CT.</p><p><strong>Methods and materials: </strong>Patients referred for routine contrast enhanced chest CT were prospectively categorised as normal, muscular or overweight. Patients were accordingly randomised into two groups; Group 1 received a fixed CM protocol. Group 2 received CM volume according to a body composition-tailored protocol. Objective image quality comparisons between protocols and body compositions were performed. Differences between groups and correlation were analysed using <i>t</i>-test and Pearson's <i>r</i>.</p><p><strong>Results: </strong>A total of 179 patients were included: 87 in Group 1 (mean age, 51 ± 17 years); and 92 in Group 2 (mean age, 52 ± 17 years). Compared to Group 2, Group 1 showed lower vascular attenuation in muscular (mean 346 Hounsfield unit (HU) <i>vs</i> 396 HU; <i>p</i> = 0.004) and overweight categories (mean 342 HU <i>vs</i> 367 HU; <i>p</i> = 0.12), while normal category patients showed increased attenuation (385 <i>vs</i> 367; <i>p</i> = 0.61). In Group 1, strongest correlation was found between attenuation and TBW in muscular (<i>r</i> = -.49, <i>p</i> = 0.009) and waist circumference in overweight patients (<i>r</i> = -.50, <i>p</i> = 0.005). In Group 2, no significant correlations were found for the same body size parameters. In Group 1, 13% of the overweight patients was below 250 HU (<i>p</i> = 0.053).</p><p><strong>Conclusion: </strong>A combined TBW and body composition-tailored CM protocol in chest CT resulted in more homogenous enhancement and fewer outliers compared to a fixed-volume protocol.</p><p><strong>Advances in knowledge: </strong>This is, to our knowledge, the first study to investigate the impact of various body compositions on contrast medium enhancement in chest CT.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"5 1","pages":"20230054"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10630975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}