{"title":"Getting to the heart of Carotid and Vertebral imaging in acute ischemic stroke: an all-encompassing cross-sectional comparative analysis of Colour Doppler Ultrasound, CT Angiography, and MR Angiography.","authors":"Komal Verma Saluja, Mahesh Kumar Swami, Drishya Pillai, Manisha Meena, Dharm Raj Meena","doi":"10.1093/bjro/tzaf031","DOIUrl":"10.1093/bjro/tzaf031","url":null,"abstract":"<p><strong>Objectives: </strong>This study presents a comprehensive comparison of minimally-invasive extracranial neck imaging modalities-Colour Doppler ultrasound (CDUS), CT angiography (CTA), and MR angiography (MRA)-in acute ischaemic stroke (AIS) patients. The aim was to evaluate vessel stenosis, its related parameters, and assess the role of early CTA/MRA in AIS.</p><p><strong>Methods: </strong>Categorical and continuous data were compared with Chi-square and independent Sample <i>t</i>-test, respectively. Spearman rank correlation matrix was performed for non-linear CDUS variables. The agreement between various imaging modalities was calculated with kappa (<i>k</i>) coefficient.</p><p><strong>Results: </strong>AIS was most common in males, aged 61-70 years, associated with hypertension and smoking (<i>P</i>-value < .05). Seventy-four plaques were identified in 50 patients, with good agreement between the 3 imaging (<i>k</i> > 0.6). CDUS was limited in evaluating Vertebral Arteries and plaque characterization. CTA/MRA showed higher sensitivity for defining stenosis and plaques, with good-excellent agreement between them (<i>k</i> > 0.6). CTA and MRA identified 40 and 43 vulnerable plaques, respectively.</p><p><strong>Conclusions: </strong>Colour Doppler ultrasound is subjective, comprehensive assessment of anatomic and hemodynamic parameters but lacks sensitivity in identifying vulnerable plaques. CTA/MRA have better sensitivity with good soft tissue differentiation especially in lesser stenosed vessels.</p><p><strong>Advances in knowledge: </strong>Our results support preferred use of MRA/CTA as first-line modalities in time-sensitive scenarios like acute stroke and need to move beyond CDUS-based assessment. These show promise in detecting vulnerable plaque and predicting AIS risk/recurrence; in patient triage, and to guide early intensive treatment. Longitudinal studies are required to assess risk reduction by early advanced imaging.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"8 1","pages":"tzaf031"},"PeriodicalIF":3.5,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12812217/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146004559","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}
BJR openPub Date : 2025-11-24eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf030
Saskia Hazout, Daniel Zwahlen, Christoph Oehler, Ambroise Champion, David Benzaquen, Daniel Taussky
{"title":"Exploring the therapeutic potential of localized alpha irradiation for cancer: from DNA damage to immune activation.","authors":"Saskia Hazout, Daniel Zwahlen, Christoph Oehler, Ambroise Champion, David Benzaquen, Daniel Taussky","doi":"10.1093/bjro/tzaf030","DOIUrl":"10.1093/bjro/tzaf030","url":null,"abstract":"<p><p>Alpha radiation has emerged as a promising modality in cancer treatment due to its unique physical and biological properties. Among these, diffusing alpha-emitters radiation therapy (DaRT) delivers alpha radiation directly into solid tumours using inserted seeds. This review synthesizes both the biological mechanisms and therapeutic implications of alpha irradiation, with a focus on DaRT. We explore how alpha particles induce complex DNA damage, modulate the tumour microenvironment, and interact with immune therapies. Emphasis is placed on preclinical and early clinical findings that suggest DaRT's potential to improve outcomes, especially in difficult-to-treat malignancies. The high linear energy transfer (LET) radiation induces complex DNA damage in tumour cells, leading to increased cell death compared to conventional radiotherapy. Alpha particles have a short range in tissue, allowing for highly localized treatment with minimal damage to surrounding healthy tissue. Recent studies have demonstrated that alpha radiation can stimulate antitumor immune responses, potentially enhancing treatment efficacy. Clinical trials utilizing alpha-emitting radioisotopes have shown encouraging results in various cancer types, particularly for metastatic disease.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf030"},"PeriodicalIF":2.1,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12694430/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145745876","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}
BJR openPub Date : 2025-11-09eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf029
Mickael Tordjman, Jan Fritz, Nor-Eddine Regnard, Richard Kijowski, Fadila Mihoubi, Bachir Taouli, Xueyan Mei, Mingqian Huang, Ali Guermazi
{"title":"Artificial intelligence in musculoskeletal radiology: practical aspects and latest perspectives.","authors":"Mickael Tordjman, Jan Fritz, Nor-Eddine Regnard, Richard Kijowski, Fadila Mihoubi, Bachir Taouli, Xueyan Mei, Mingqian Huang, Ali Guermazi","doi":"10.1093/bjro/tzaf029","DOIUrl":"10.1093/bjro/tzaf029","url":null,"abstract":"<p><p>Musculoskeletal (MSK) imaging was among the first radiology subspecialties to adopt artificial intelligence (AI), with applications now spanning the entire MSK workflow, from image acquisition to reporting. Deep learning-based reconstruction protocols can accelerate MRI by reducing scan times and artefacts, improving accessibility in high-volume and resource-limited settings. Furthermore, AI interpretation tools have demonstrated strong performance in fracture detection, assessment of meniscal and ligament tears, bone tumour characterization and automated quantification of measurements, supporting greater diagnostic consistency across radiologists with varying experience levels. Large language models (LLMs) extend AI's impact beyond image analysis by simplifying reports for patients, automating classification systems, and streamlining clinical communication. Despite these advances, important challenges remain. Integration of AI into already established clinical workflows can be complex, and requires robust technical solutions, regulatory compliance, and strategies to maintain radiologist oversight. Questions of liability, cost-effectiveness, and the role of AI in medical education further underscore the need for careful implementation. AI is poised to fundamentally reshape MSK radiology by enhancing efficiency, improving diagnostic accuracy, and enabling more patient-centred communication. To fully realize this potential, adoption must balance innovation with safety, equity, and sustainability, ensuring AI remains a trusted assistive tool that strengthens rather than replaces radiologist expertise.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf029"},"PeriodicalIF":2.1,"publicationDate":"2025-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12681254/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145703158","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}
BJR openPub Date : 2025-11-02eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf025
Muhammad Israr Ahmad, Lulu Liu, Adnan Sheikh, Savvas Nicolaou
{"title":"The role of musculoskeletal radiologists in emergency and trauma settings: current and emerging imaging modalities.","authors":"Muhammad Israr Ahmad, Lulu Liu, Adnan Sheikh, Savvas Nicolaou","doi":"10.1093/bjro/tzaf025","DOIUrl":"10.1093/bjro/tzaf025","url":null,"abstract":"<p><p>MSK radiologists play a critical role in emergency and trauma settings, where rapid and accurate imaging interpretation is essential for timely diagnosis and treatment. The increasing complexity of trauma cases has driven the adoption of advanced imaging modalities beyond conventional radiographs and computed tomography (CT). Dual-energy CT (DECT) and magnetic resonance imaging (MRI) have revolutionized MSK imaging, offering superior tissue characterization and improved detection of occult fractures, bone marrow edema (BME), infections, and soft tissue injuries. Emerging technologies, such as portable MRI and photon-counting CT (PCCT), further enhance diagnostic capabilities by enabling bedside imaging, reducing radiation exposure, and providing ultra-high-resolution images. MSK radiologists are integral to immediate diagnosis, triaging, differentiating acute from chronic injuries, guiding surgical interventions, and performing image-guided procedures. DECT in particular has proven invaluable in detecting BME, reducing metal artifacts, and improving soft tissue contrast, while MRI remains the gold standard for evaluating soft tissue injuries and occult fractures. Portable MRI offers a radiation-free alternative for point-of-care imaging, especially in spinal cord and soft tissue injuries. PCCT, with its superior spatial resolution and material decomposition capabilities, holds promise for advanced fracture detection and reduced radiation doses. Additionally, 3D printing has emerged as a transformative tool for preoperative planning, surgical simulation, and personalized implant design. Despite challenges such as cost, accessibility, and technical limitations, these advancements are reshaping trauma imaging. As technology evolves, MSK radiologists will continue to integrate these innovations to optimize patient care in emergency and trauma settings, ensuring faster, more accurate diagnoses.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf025"},"PeriodicalIF":2.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12579983/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145440202","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}
BJR openPub Date : 2025-10-26eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf027
Benjamin E Northrup, Kate Hanneman, Reed A Omary
{"title":"EcoRad: sustainable radiology and the ecology of economics.","authors":"Benjamin E Northrup, Kate Hanneman, Reed A Omary","doi":"10.1093/bjro/tzaf027","DOIUrl":"10.1093/bjro/tzaf027","url":null,"abstract":"<p><p>This review explores the dual meaning of the prefix \"eco\"-ecology and economics-and the transformative idea of synthesizing the two into a single \"eco\" framework. This framework gives rise to EcoRad, which blends economic and ecologic principles to optimize radiology practice. EcoRad strives to achieve the triple bottom line by approaching economic challenges from a planetary health perspective and by using economic approaches to enhance planetary health. In effect, this expands the traditional focus on financial performance to also include social and environmental impact. With EcoRad as a guide, radiology departments are called upon to consider 5 actions that can help overcome barriers to sustainable radiology: adopt sustainable procurement and maintenance, integrate green information technology (IT) and operational efficiencies, advocate for payment models that reward green radiology, champion green budgeting, and involve patients, industry, third-party payors, and policymakers in sustainability.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf027"},"PeriodicalIF":3.5,"publicationDate":"2025-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12554375/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145379687","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}
BJR openPub Date : 2025-10-15eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf026
Girija Agarwal, Kavish Maroo, Paymon Zomorodian, Naman Bhatt, Dilan Sanli, Akash Sharma, Susan C Shelmerdine
{"title":"Radiology AI training and assessment-challenges, innovations, and a path forward.","authors":"Girija Agarwal, Kavish Maroo, Paymon Zomorodian, Naman Bhatt, Dilan Sanli, Akash Sharma, Susan C Shelmerdine","doi":"10.1093/bjro/tzaf026","DOIUrl":"10.1093/bjro/tzaf026","url":null,"abstract":"<p><p>Artificial intelligence (AI) is transforming radiology, with nearly 80% of approved AI as medical devices (AIaMDs) being imaging-related. As AI adoption accelerates, radiology training programs must evolve to equip future radiologists with the skills to critically evaluate, implement, and integrate AI into clinical practice. However, despite AI's growing role, its inclusion in medical curricula remains inconsistent, and assessment of AI competency is lacking. This review explores the current state of AI in UK medical training curricula with a more in-depth focus on radiology. We discuss the potential impact of AI on competency evaluations, including the Fellowship of the Royal College of Radiologists (FRCR) examinations, Annual Review of Competence Progression (ARCP), and on-call assessments. Additionally, we examine how AI-driven educational resources, such as AI-assisted training platforms, could enhance radiology education. To future-proof radiology training and careers, we propose strategies to evaluate AI literacy including nationalized structured AI teaching, and AI-focused assessments. Addressing these challenges will be crucial in ensuring that radiologists remain at the forefront of digital healthcare transformation while maintaining their core diagnostic expertise.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf026"},"PeriodicalIF":2.1,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12696643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145758566","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}
BJR openPub Date : 2025-10-14eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf028
Karen Chetcuti, Cowles Chilungulo
{"title":"Case-based review of low-field MRI in resource-constrained settings: a clinical perspective from Malawi.","authors":"Karen Chetcuti, Cowles Chilungulo","doi":"10.1093/bjro/tzaf028","DOIUrl":"10.1093/bjro/tzaf028","url":null,"abstract":"<p><p>Low-field MRI (LF-MRI) is in the spotlight as multidisciplinary experts consider it to be one solution to expanding MRI access worldwide. The clinical scenarios and case-mix in which LF-MRI could play an especially important role in the patient diagnostic algorithm are different in High and Low- and Middle-Income Countries (LMIC). The aim of this article is to suggest a robust structure within which to envision clinical use and advancement of LF-MRI technology in LMICs. This article presents three discrete clinical scenarios-a tertiary care facility with an LF-MRI only, a tertiary care facility with an LF-MRI and an HF-MRI and a peripheral healthcare facility with an LF-MRI only-derived from a combination of the authors' observed practice and hypothetical models in an LMIC and 31 consecutive case reviews within a 32-month timeframe of our experience with the 0.064 T Hyperfine Swoop in Malawi. The authors recognize the important of a holistic approach to the ongoing multifaceted efforts at LMIC-appropriate advancement of LF-MRI technology. This ranges from continued innovation relating to deep learning methods for improved diagnostic accuracy and workflow efficiency, empowerment towards building LF-MRIs in-situ in the LMIC and multidisciplinary capacity building initiatives in LMICs.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf028"},"PeriodicalIF":2.1,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12579540/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433120","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":"Clinical utility of diffusion tensor imaging in sport-related concussion: a systematic review.","authors":"Shiv Patil, Rithvik Kata, Serhat Aydin, Mert Karabacak, Konstantinos Margetis, Sotirios Bisdas","doi":"10.1093/bjro/tzaf024","DOIUrl":"10.1093/bjro/tzaf024","url":null,"abstract":"<p><strong>Objective: </strong>Sport-related concussion (SRC) is a prevalent form of traumatic brain injury that is associated with long-term neurological and psychiatric impairment, particularly among athletes with a history of repetitive concussions. The biological variability of SRC's impact on the brain, as well as a lack of objective biomarkers to diagnose and prognosticate concussion, has prompted interest in advanced neuroimaging methods such as diffusion tensor imaging (DTI). By measuring disruptions in water diffusivity due to head trauma, DTI can detect alterations in white matter integrity that are not visualized by conventional imaging methods. This systematic review aims to synthesize major trends and findings on original research studies that utilized DTI to evaluate subjects for SRC.</p><p><strong>Methods: </strong>An initial search from PubMed, Web of Science, and Scopus generated 397 articles published from database inception to 2024, with 26 studies included in the final qualitative synthesis.</p><p><strong>Results: </strong>Findings showed heterogenous changes in DTI parameters during acute injury with more consistent alterations seen in chronic injury, particularly as reduced fractional anisotropy and elevated mean diffusivity. Significant variability was observed in study design and methodology, which may explain discrepancies in findings across studies.</p><p><strong>Conclusions: </strong>Future research efforts should implement standardized methods capable of accounting for inter-individual differences to further validate DTI's role as an objective biomarker of SRC.</p><p><strong>Advances in knowledge: </strong>Individualized analysis of DTI could serve as a diagnostic tool and prognostic metric for patients with SRC, thus enabling an objective measure of long-term outcome and suitability for return-to-play.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf024"},"PeriodicalIF":2.1,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12538676/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145350273","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}
BJR openPub Date : 2025-09-25eCollection Date: 2026-01-01DOI: 10.1093/bjro/tzaf023
Erasmo de la Peña, Michael Jackson, Sonal Krishan, Ntobeko Ntusi, Sarah Sheard
{"title":"'Challenges and opportunities for imaging on a global scale' special collection-introductory editorial.","authors":"Erasmo de la Peña, Michael Jackson, Sonal Krishan, Ntobeko Ntusi, Sarah Sheard","doi":"10.1093/bjro/tzaf023","DOIUrl":"10.1093/bjro/tzaf023","url":null,"abstract":"","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"8 1","pages":"tzaf023"},"PeriodicalIF":3.5,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12964112/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147379676","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}
BJR openPub Date : 2025-09-25eCollection Date: 2025-01-01DOI: 10.1093/bjro/tzaf022
Derek K Jones, Daniel C Alexander, Karen Chetcuti, Mara Cercignani, Kirsten A Donald, Mark A Griswold, Emre Kopanoglu, Ikeoluwa Lagunju, Johnes Obungoloch, Godwin Ogbole, Marco Palombo, Andrew G Webb
{"title":"Low field, high impact: democratizing MRI for clinical and research innovation.","authors":"Derek K Jones, Daniel C Alexander, Karen Chetcuti, Mara Cercignani, Kirsten A Donald, Mark A Griswold, Emre Kopanoglu, Ikeoluwa Lagunju, Johnes Obungoloch, Godwin Ogbole, Marco Palombo, Andrew G Webb","doi":"10.1093/bjro/tzaf022","DOIUrl":"10.1093/bjro/tzaf022","url":null,"abstract":"<p><p>MRI is a cornerstone of modern clinical medicine and neuroscience, yet it remains largely inaccessible in low- and middle-income countries (LMICs) due to high costs, complex infrastructure requirements, the need for specialized personnel, and dependence on proprietary systems. Portable low-field MRI (LF-MRI), operating below 100 mT, offers a compelling alternative: low-cost, more accessible, and increasingly powerful, thanks to advances in hardware engineering, acquisition physics, image reconstruction, and open-source software. Reviewing and building upon recent progress, we, a multidisciplinary team of clinicians, physicists, engineers, and global health researchers based both in LMIC and HIC settings, present a formal argument for the adoption of LF-MRI as a catalyst for discovery science and healthcare innovation in LMICs. LF-MRI can produce clinically meaningful images and rich research data, enabling population-scale studies in neurodevelopment, ageing, and neurogenetics. But we argue that systems must be open, upgradeable, and co-developed, allowing potential for local teams to maintain, adapt, and scale technology according to their needs. Beyond the scanner, we outline the ecosystem required for success: data infrastructure, training pathways, ethical data governance, and equitable collaboration. We issue a call to researchers, vendors, and funders to reframe MRI as a globally accessible technology, capable of supporting diverse research agendas and delivering transformative health impact, particularly where it is needed most.</p>","PeriodicalId":72419,"journal":{"name":"BJR open","volume":"7 1","pages":"tzaf022"},"PeriodicalIF":3.5,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12529269/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145330848","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}