Oral Radiology最新文献

{"title":"Is it possible to apply a paralleling technique to different ethnicities in Hong Kong?","authors":"Miharu Taguchi, Hiroshi Watanabe, Ami Kuribayashi, Andy Wai Kan Yeung, Ray Tanaka","doi":"10.1007/s11282-025-00842-1","DOIUrl":"https://doi.org/10.1007/s11282-025-00842-1","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the applicability of a paralleling technique in dental patients in Hong Kong via cone-beam computed tomography (CBCT) images.</p><p><strong>Methods: </strong>We analyzed CBCT images of 28 patients who underwent CBCT examination at Prince Philip Dental Hospital between March 2016 and July 2021. Overall, 136 teeth were studied. We created an 8 mm-thick reconstructed maximum intensity projection image to show each subject tooth, traced them with the surrounding structures, such as the hard palate and the buccal skin surface of the maxilla, and measured various parameters for determining the tooth length and palatal height. We also considered the applicability of the parallel technique.</p><p><strong>Results: </strong>We successfully measured the parameters with excellent intra- and inter-observer reliability indices. The results revealed that the applicability of this technique was not feasible. These results were similar to those of a previous study. Only two periapical radiographs showed distorted shapes and inconsistent root lengths.</p><p><strong>Conclusions: </strong>Using CBCT image analysis, this study clarified that the paralleling technique is not applicable even for patients in Hong Kong. Clinicians should note that the paralleling technique is not strictly a paralleling method and may lead to image distortion.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144661119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differentiating odontogenic myxoma from ameloblastoma by focusing on cyst-like areas on MR images.","authors":"Ami Kuribayashi, Shin Nakamura, Hiroshi Watanabe, Sakurako Kawashima, Shinya Kotaki, Akiko Imaizumi, Hiroshi Tomisato, Yoshikazu Nomura, Miharu Taguchi, Arisa Oki, Sakiko Kume, Masahiko Miura","doi":"10.1007/s11282-025-00841-2","DOIUrl":"https://doi.org/10.1007/s11282-025-00841-2","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to identify characteristic findings of odontogenic myxoma (OM) and assess the role of MRI in differentiating OM from ameloblastoma by analysing cyst-like areas.</p><p><strong>Methods: </strong>MRI images from 12 and 15 patients with OM and ameloblastoma, respectively, were retrospectively evaluated to determine imaging features useful for differentiation. We analysed cyst-like areas in OM using apparent diffusion coefficient (ADC) values and gadolinium contrast patterns, comparing them with those in ameloblastoma. ADC values were statistically assessed via the Mann-Whitney U test.</p><p><strong>Results: </strong>In OM, the mean ADC value of cyst-like areas was 1.84 × 10⁻³ mm²/s. Contrast-enhanced T1-weighted images showed signal enhancement, with a gradual increase on dynamic contrast-enhanced MRI (DCE-MRI). Conversely, in ameloblastoma, the mean ADC value was 2.28 × 10⁻³ mm²/s. Unlike OM, its cyst-like areas lacked enhancement, with only the solid areas exhibiting a rapid signal increase on DCE-MRI. ADC values were significantly higher in ameloblastoma (P < 0.05).</p><p><strong>Conclusions: </strong>The presence or absence of contrast enhancement in cyst-like areas aids in differentiating OM from ameloblastoma. Additionally, ADC values may be used to differentiate between these tumors in the absence of contrast agents.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144644164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of endodontic treatment quality on the severity of apical periodontitis in molars teeth: a retrospective CBCT study.","authors":"Pelinsu Şahin, Hüseyin Gündüz","doi":"10.1007/s11282-025-00844-z","DOIUrl":"https://doi.org/10.1007/s11282-025-00844-z","url":null,"abstract":"<p><strong>Objectives: </strong>This study investigated the relationship between root canal treatment quality and the development and severity of periapical radiolucency in maxillary and mandibular molars using cone beam computed tomography (CBCT).</p><p><strong>Methods: </strong>A retrospective analysis was conducted on CBCT images of 396 maxillary and mandibular first and second molars. High-quality imaging records confirmed the absence of preoperative periapical lesions, with root canal treatments performed at least 4 years prior. The Periapical and Endodontic Status Scale was used to evaluate root canal filling length and homogeneity, coronal restoration seal, treatment complications, lesion size, relationship between root and lesion, and bone destruction location across axial, sagittal, and coronal CBCT sections.</p><p><strong>Results: </strong>Endodontic treatment quality significantly influenced periapical lesion development, lesion size, relationship between root and lesion, and bone destruction location (p < 0.05). The prevalence of periapical radiolucencies was higher in teeth with short root canal fillings, inadequate filling homogeneity, insufficient coronal restorations, root perforations, or missed canals (p < 0.05). Larger lesions (> 5 mm) correlated with short root canal fillings, inadequate filling homogeneity, and inadequate restorations, which were also associated with cortical bone destruction and furcation involvement (p < 0.05). Apical radiolucency was more frequently observed in mandibular first molars than in second molars, with the lesions tending to be smaller, involving multiple roots, and located around the root structures.</p><p><strong>Conclusion: </strong>This study highlights the critical influence of endodontic treatment quality on periapical lesion development, lesion size, relationship between root and lesion, and bone destruction location. Increased lesion severity compromises retreatment success, underscoring the importance of understanding periapical radiolucency risk factors for improved outcomes.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144621269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applicability and performance of convolutional neural networks for the identification of periodontal bone loss in periapical radiographs: a scoping review.","authors":"Ramadhan Hardani Putra, Eha Renwi Astuti, Aga Satria Nurrachman, Yunita Savitri, Anastasya Vara Vadya, Serafina Tasyarani Khairunisa, Masahiro Iikubo","doi":"10.1007/s11282-025-00839-w","DOIUrl":"https://doi.org/10.1007/s11282-025-00839-w","url":null,"abstract":"<p><p>The study aimed to review the applicability and performance of various Convolutional Neural Network (CNN) models for the identification of periodontal bone loss (PBL) in digital periapical radiographs achieved through classification, detection, and segmentation approaches. We searched the PubMed, IEEE Xplore, and SCOPUS databases for articles published up to June 2024. After the selection process, a total of 11 studies were included in this review. The reviewed studies demonstrated that CNNs have a significant potential application for automatic identification of PBL on periapical radiographs through classification and segmentation approaches. CNN architectures can be utilized to classify the presence or absence of PBL, the severity or degree of PBL, and PBL area segmentation. CNN showed a promising performance for PBL identification on periapical radiographs. Future research should focus on dataset preparation, proper selection of CNN architecture, and robust performance evaluation to improve the model. Utilizing an optimized CNN architecture is expected to assist dentists by providing accurate and efficient identification of PBL.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144593007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of motion artifacts and their correction software on quality and interpretability of cone-beam computed tomography images.","authors":"Mehrdad Panjnoush, Yasaman Kheirandish, Naeimeh Nikfarjam Nouri","doi":"10.1007/s11282-025-00835-0","DOIUrl":"https://doi.org/10.1007/s11282-025-00835-0","url":null,"abstract":"<p><strong>Background: </strong>Motion artifacts decrease the quality of cone-beam computed tomography (CBCT) images. Knowledge about the efficacy and accuracy of motion artifact correction software programs can be beneficial.</p><p><strong>Objectives: </strong>This study aimed to assess the effect of motion artifacts and their correction software on quality and interpretability of CBCT images.</p><p><strong>Materials and methods: </strong>In this ex-vivo experimental study, a dry human mandible was moved mesiodistally and anteroposteriorly by 1 and 3 mm for 1 s by a robot during CBCT scanning. The images were reconstructed by Romexis software, and three observers evaluated the quality and interpretability of images with and without the application of Planmeca CALM™ software for artifact correction. The effects of distance and direction of movement, landmark location, scanner resolution, and application of CALM software on quantitative and qualitative interpretability, measurability, and sharpness of images were analyzed.</p><p><strong>Results: </strong>A high percentage of agreement existed among the three observers in all variables (P < 0.05). Landmark location and direction of movement had no significant correlation with qualitative interpretability, measurability, and sharpness of images (P > 0.05). Distance of movement had a significant effect on qualitative interpretability and sharpness (P < 0.05) but not measurability (P > 0.05) of images. Application of CALM had no significant correlation with qualitative interpretability, measurability, or sharpness (P > 0.05). Resolution of scanner had a significant effect on qualitative interpretability and sharpness but not measurability (P > 0.05).</p><p><strong>Conclusions: </strong>Distance of movement ≤ 1 mm and application of CALM significantly improved the quantitative interpretability of CBCT images.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144602375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of bruxism on the mandibular angle and condylar structures: a panoramic radiographic assessment.","authors":"Aslihan Artas, Elif Meltem Aslan","doi":"10.1007/s11282-025-00840-3","DOIUrl":"https://doi.org/10.1007/s11282-025-00840-3","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study is to comparatively evaluate morphologic changes in the mandibular angle and condylar region, assess the mandibular cortical index (MCI), and analyze the relationships between these parameters in bruxers and non-bruxers using panoramic radiographs.</p><p><strong>Methods: </strong>A total of 182 patients (364 mandibular condyle and angle), 91 bruxers and 91 non-bruxers (controls), aged between 18 and 35, were participated in this study. Three hundred sixty four mandibular angles were classified as G0, G1, G2, G3 in terms of bone apposition and direction change. In addition, osseous changes in the mandibular condyle were determined and the endoestal edge of the basal cortex was evaluated according to the MCI classification. Parameters were analyzed using the Pearson's Chi-Square test and Fisher's Exact test. A p value < 0.05 was considered significant.</p><p><strong>Result: </strong>MCI class C1, G0 class, and normal condyle type were found to be significantly more common in the non-bruxist group than in the bruxist group (p < 0.001, p = 0.025, p = 0.006, respectively). It was determined that deformity and MCI-C2 class were more common in the bruxist group (p = 0.006, p < 0.001). Morphologic changes in the endosteal margin of the cortex and in the condylar region were observed more frequently in bruxist individuals.</p><p><strong>Conclusion: </strong>For a general overview of the probable presence of bruxism, osseous changes in the mandibular condyle, and MCI can be used as auxiliary diagnostic markers.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144585732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Age determination by measurement of pulp volume of canine teeth in patients with cleft lip and palate: a retrospective study.","authors":"Elif Akbas Akca, Rabia Duman Tepe, Ilknur Ozcan, Hulya Cakir Karabas","doi":"10.1007/s11282-025-00802-9","DOIUrl":"10.1007/s11282-025-00802-9","url":null,"abstract":"<p><strong>Objectives: </strong>This study evaluates the potential of pulp volume/total tooth-volume measurements of canine teeth in relation to chronologic age in patients with cleft lip and palate (CLP). The significance of this study lies in its exploration of the usability of these measurements for age determination in CLP patients, providing a novel perspective to the existing literature.</p><p><strong>Methods: </strong>Cone beam computed tomography images of 33 patients (16 females, 17 males) with unilateral CLP aged 14-45 years and 33 age- and sex-matched healthy individuals (16 females, 17 males) were retrospectively evaluated. Using ITK-SNAP software, pulp and whole tooth volumes of canine teeth on the non-defect side of CLP patients and the corresponding side of healthy individuals were measured. Their relationship with chronologic age was evaluated, and comparisons were made between the CLP and control groups.</p><p><strong>Results: </strong>No statistically significant difference was observed between the whole tooth volume, pulp volume, and pulp volume/total tooth-volume ratios of the control and CLP groups. A paired t test comparing chronologic age and calculated mean age of both groups found no significant difference.</p><p><strong>Conclusions: </strong>The results show that the pulp and total tooth-volume ratios of canine teeth in the non-defect areas of individuals with unilateral CLP correlate with chronologic age and can be used reliably for age determination. This indicates that individuals with CLP can be evaluated similarly to healthy individuals, allowing accurate age estimation based on dental measurements.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"331-339"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of a handheld X-ray unit in the diagnosis of proximal caries lesions using different digital systems.","authors":"Débora Costa Ruiz, Rocharles Cavalcante Fontenele, Hugo Gaêta-Araujo, Amanda Farias-Gomes, Matheus L Oliveira, Deborah Queiroz Freitas, Francisco Haiter-Neto","doi":"10.1007/s11282-025-00805-6","DOIUrl":"10.1007/s11282-025-00805-6","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the influence of a handheld X-ray unit in the diagnosis of proximal caries lesions using different digital systems by comparing with a wall-mounted unit.</p><p><strong>Methods: </strong>Radiographs of 40 human teeth were acquired using the Eagle X-ray handheld unit (Alliage, São Paulo, Brazil) set at 2.5 mA, 60 kVp and an exposure time of 0.45 s. Then, new radiographs of the teeth were acquired using the Focus X-ray wall-mounted unit (Instrumentarium, Tuusula, Finland) set at 7 mA, 60 kVp, and exposure time of 0.16 s. Three digital systems were used: a photostimulable phosphor plate receptor (Express system) and two complementary metal oxide semiconductor sensors (Digora Toto and SnapShot systems). Five oral and maxillofacial radiologists individually assessed the radiographs. Area under the receiver-operating characteristic curve (AUC), sensitivity, and specificity were calculated from the responses of the examiners and compared using Analysis of Variance at a significance level of 5%. The weighted Kappa index evaluated the intra- and inter-examiner agreements for caries lesions diagnosis.</p><p><strong>Results: </strong>The handheld X-ray unit did not influence on the diagnostic metrics for the three digital systems used when compared with the wall-mounted unit (p > 0.05). The SnapShot showed higher AUC value than Digora Toto (p < 0.05). The mean values of intra- and inter-examiner agreements were 0.654 (substantial) and 0.365 (fair), respectively.</p><p><strong>Conclusions: </strong>The diagnostic accuracy for detecting proximal caries lesions is not influenced by the use of a handheld X-ray unit, regardless of the digital system used.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"349-354"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143017045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance comparison in workflow efficiency between a remotely installed 3D workstation and an on-premises image processing workstation for dental cone-beam CT image reconstruction.","authors":"Ryoichi Tanaka, Hiroki Mouri, Noriaki Takahashi, Mitsuru Izumisawa, Masayuki Hoshino, Riku Sakamoto, Takaki Kanamori, Ami Shimamura, Ryota Sakai, Emi Kanno, Motoi Sawano","doi":"10.1007/s11282-025-00806-5","DOIUrl":"10.1007/s11282-025-00806-5","url":null,"abstract":"<p><strong>Objectives: </strong>This study aims to compare the image processing times of dental cone beam CT (CBCT) images using a remote medical image processing workstation (RW) versus on-premises image processing (OP) and assess its impact on workflow efficiency.</p><p><strong>Methods: </strong>Data from 100 CBCT cases were randomly selected and processed using the OP3D VISION 17-19DX (EH Japan Co., Ltd.). In the OP environment, OnDemand 3D Dental (Cybermed Inc.) was used on a local terminal, while the RW setup involved a remote workstation-ZIO STATION (Ziosoft Inc.) connected via a 2 Gbps network. Seven experienced dentists processed the same data in both environments, and various processing times, including data transfer, re-slicing, 3D reconstruction, and PACS transfer, were compared.</p><p><strong>Results: </strong>The RW environment showed significantly shorter data transfer and re-slicing times than the OP environment. However, 3D image reconstruction times were similar between the two setups. Overall, processing time was significantly reduced in the RW environment. Variability in processing times among operators was observed, with most achieving reductions in the RW environment.</p><p><strong>Conclusions: </strong>Remote processing of dental CBCT images using a dedicated image processing device offers equivalent or improved performance compared to on-premises processing. This approach can enhance workflow efficiency by reducing processing times and freeing up local resources, although further research is needed to optimize remote display protocols and multi-client access.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"355-362"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12167279/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143034791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of mastoid emissary foramen morphology: a multidetector computed tomography study.","authors":"Ahmet Faruk Ertürk, Gürkan Ünsal, Sevde Göksel, Elif Çelebi, Hamit Tunç, Maria Maddalena Marrapodi, Marco Cicciù, Giuseppe Minervini","doi":"10.1007/s11282-025-00808-3","DOIUrl":"10.1007/s11282-025-00808-3","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to assess the occurrence and morphological features of the mastoid emissary foramen (MEF) using multidetector computed tomography (MDCT) images. The analysis highlights the clinical significance of these structures and their implications for surgical procedures.</p><p><strong>Methods: </strong>A total of 357 patients were evaluated using MDCT in bone window mode with a high-resolution technique (1 mm). The presence, number, and mean diameter of the MEFs were recorded. Statistical analyses compared data between both sides and sexes.</p><p><strong>Results: </strong>714 sides from 357 patients (177 male, 180 female) were analyzed. The patients' ages ranged from 7 to 83 years, with a mean age of 25.6. MEFs were found in 329 patients, representing 92.15% of the total. The diameters of the MEFs ranged from 0.6 mm to 5.0 mm on the right side (mean 1.80 mm) and from 0.6 mm to 4.4 mm on the left side (mean 1.96 mm). Up to 3 MEFs were identified on the right side, and a maximum of 6 on the left. No significant differences in MEF presence were observed between sexes or between the left and right sides (p > 0.05).</p><p><strong>Conclusion: </strong>This study reveals a high prevalence and notable anatomical variations in the MEF, with MEFs larger than previously reported. At least one MEF was detected in 92.15% of cases, emphasizing the importance of comprehensive preoperative evaluation.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"372-377"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12167318/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143506306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}