{"title":"The Pediatric Clinical Specialist Radiation Therapist (CSRT): Advancing Care and Innovation in Pediatric Radiotherapy","authors":"Tatiana Ritchie","doi":"10.1016/j.jmir.2025.101956","DOIUrl":"10.1016/j.jmir.2025.101956","url":null,"abstract":"<div><h3>Purpose/Aim</h3><div>Our radiotherapy department treats approximately 130 pediatric cancer patients per year, working in close clinical collaboration with the pediatric hospital. Starting in 2024, our department implemented the first CSRT role within a pediatrics program. The aim of this abstract is to provide an overview of pediatric radiotherapy processes at our institution, and to describe the unique benefits and challenges associated with the implementation of a pediatric CSRT role.</div></div><div><h3>Methods/Process</h3><div>The process of developing this CSRT role has involved a review of current clinical workflows within the pediatric program. It was necessary to identify bottlenecks and gaps in care, and to determine how best a CSRT can support the clinical care team. It has also been helpful to determine how other CSRTs at our institution have integrated themselves within the clinical space. Understanding scope of their roles and contributions within their teams has provided critical insights into how the pediatric CSRT role can evolve. Finally, close collaboration with pediatric nurses and radiation oncologists has been essential in identifying opportunities for the pediatric CSRT to improve care delivery, optimize workflows, and streamline processes.</div></div><div><h3>Results or Benefits/Challenges</h3><div>Implementing this unique role has presented challenges, as there had to be careful consideration of paths that may not ultimately benefit the team. Deciding which new skills to prioritize and which may not align with the program's needs has at times been a daunting task. Additionally, the large, interdisciplinary team responsible for caring for pediatric patients spans multiple hospitals, adding another layer of complexity to the process. However, having a CSRT with extensive clinical experience and technical knowledge in treating pediatric patients within the radiation therapy setting has been an invaluable asset. They provide teaching and mentorship to students and radiation therapists. Amidst ongoing technological advancements, they ensure that pediatric patients are prioritized for access to the latest treatments and innovations. They are constantly exploring ways to improve processes and identify new research opportunities. All the while, they remain focused on ensuring that the unique needs of pediatric patients are fully met.</div></div><div><h3>Conclusions/Impact</h3><div>In the process of reviewing the model of care that currently exists, we aim to continue improving pediatric patient experience while remaining at the forefront of innovation. Past initiatives of the pediatric program have included eliminating permanent tattoos for pediatric patients and sharing our experience minimizing general anesthesia use. The recent implementation of a pediatric CSRT will enable us to further advance this work and identify new ways to care for our most vulnerable patients. While shaping this role to meet department and prog","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 101956"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Message de la rédactrice en chef","authors":"Amanda Bolderston","doi":"10.1016/j.jmir.2025.101900","DOIUrl":"10.1016/j.jmir.2025.101900","url":null,"abstract":"","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 3","pages":"Article 101900"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Beyond the image: How the skills of an imaging technologist shaped my educational leadership journey","authors":"Jennifer Brown","doi":"10.1016/j.jmir.2025.101913","DOIUrl":"10.1016/j.jmir.2025.101913","url":null,"abstract":"","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 5","pages":"Article 101913"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Local Evaluation of 2D/3D Registration of an Orthogonal Pair of Kilo Voltage Images Versus Cone Beam CT for Partial Brain Radiotherapy Patients","authors":"Clodagh Starrs, Vishruta Dumane","doi":"10.1016/j.jmir.2025.101923","DOIUrl":"10.1016/j.jmir.2025.101923","url":null,"abstract":"<div><h3>Purpose/Aim</h3><div>To evaluate two dimensional (2D/2D) kilo voltage imaging platforms, one two dimensional (2D/3D) registration imaging method and CBCT in the setup reproducibility of the partial brain population in a radiotherapy clinic. This research is for the purpose of potentially replacing CBCT with 2D/3D KV reconstruction for a cohort of partial brain radiotherapy patients.</div></div><div><h3>Methods/Process</h3><div>The comparison of CBCT, 2D2D and 2D3D with the respective images was performed on a Truebeam linear accelerator. This data was transferred to MOSAIQ which is the internal EMR, (electronic medical record). Shifts were extracted from Mosaiq and manually entered into an excel spreadsheet. Patient sensitive information was anonymized within HIPPA (Health Insurance Portability and accountability act, 1996) compliance. After comparing 2D/2D, 2D/3D and CBCT with their respective reference images, shifts in the lateral, longitudinal and vertical direction were noted on all these 3 comparisons. Additionally, the yaw, pitch and roll were noted in the 2D/3D and CBCT comparisons and the mean and standard deviation calculated. This study analysed 177 data samples for each of the three registration methodologies adding to a total of 531 imaging analysed.</div></div><div><h3>Results or Benefits/Challenges</h3><div>The Wilcoxon signed- rank test was utilized to compare the 3 registration methods. A P-value <0.05 was considered to be significant. The residual error for the 2D3D in the VRT, LAT and LNG direction is -0.0032 cm ± 0.0456 cm, 0.0131 cm ± 0.0441 cm and 0.0392 cm ± 0.0805 cm while for the 2D2D the residual error is found to be respectively -0.0549 cm ± 0.1828 cm, 0.0935 cm ± 0.254 cm and -0.0165 cm ± 0.2224 cm. The average difference in the RTN for the 2D3D versus CBCT was -0.3008° and for the ROLL was 0.0571°, both < 1°. The difference in the ROLL was not found to be statistically significant (p = 0.5672), while the difference in RTN was statistically significant (p = 0.0439) which can be accounted for in the PITCH.</div></div><div><h3>Conclusions/Impact</h3><div>Although limited by sample size this data collection indicates that the Varian OBI (on board imaging) system on a Truebeam LINAC offers a 2D3D KV image registration tool that displays accuracy levels for target localization that are similar to 3D3D image registration with CBCT and has the potential to replace CBCT for a selected cohort of a partial brain population.</div></div>","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 101923"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kelly Linden , El-Sayed Ali , Leslie Buckley , Gordon Locke , Marc Gaudet , Kristopher Dennis , Madeleine Van de Kleut
{"title":"DIVERT (Diagnostic Imaging for VERTebral metastases) from Conventional Treatment Planning CT Scan - Results of a Prospective Patient Study","authors":"Kelly Linden , El-Sayed Ali , Leslie Buckley , Gordon Locke , Marc Gaudet , Kristopher Dennis , Madeleine Van de Kleut","doi":"10.1016/j.jmir.2025.101924","DOIUrl":"10.1016/j.jmir.2025.101924","url":null,"abstract":"<div><h3>Purpose/Aim</h3><div>To assess the feasibility of using diagnostic CT (dCT) images to create and deliver treatment plans for palliative radiotherapy for vertebral metastases using volumetric modulated arc therapy (VMAT) radiotherapy by comparing differences in the pattern and magnitude of dose deposition between plans created on dCT images and those on treatment planning CT (TPCT) images.</div></div><div><h3>Methods/Process</h3><div>This is an REB-approved single-center non-randomized prospective cohort study with sample size n=30. A workflow was created to ensure treatment planning parameters were met and the existing dCT covered the extent of vertebral pathology. The dCT position was replicated by CT simulation staff at the time of the TPCT using a curved Styrofoam couch-top. Patients were given setup tattoos. A dedicated pre-treatment template provided setup instructions and CT staff completed a study questionnaire. The clinical target volume (CTV) and 1cm planning target volume (PTV) was contoured on the TPCT, and a VMAT treatment plan was created. Patients were positioned on the treatment couch on a curved Styrofoam couch-top and positioned according to the setup instructions, without viewing tattoos for setup. A CBCT and alignment correction with a 6-DoF treatment couch was performed and treatment delivery was initiated. Treatment delivery staff completed a study questionnaire. The CTV/PTV were independently contoured on both dCT and TPCT, and a separate VMAT plan created on the dCT. The image sets were rigidly registered at the level of the CTV, and contours exported to 3D Slicer for evaluation of common segmentation metrics. The plan created on the dCT was recalculated on the TPCT, and TPCT target coverage was evaluated.</div></div><div><h3>Results or Benefits/Challenges</h3><div>Results for n=16 (n=5 lumbosacral, n=6 lumbar or thoracolumbar, n=5 thoracic) cases to date, receiving doses of 2000cGy/5 (5) and 800cgy/1 (11). The mean ± standard deviation target coverage as calculated on the TPCT was 98.4 ± 5.2% and 94.8 ± 9.7% for the volume receiving 95% of the prescription dose (V95% Rx), 100.0 ± 3.0% and 95.2 ± 9.8% for the dose (as a percentage of the prescription dose) to 95% of the target volume (D95%), and 106.8 ± 3.0% and 107.4 ± 2.9% for the dose (as a percentage of the prescription dose) to 2% of the volume (D2%), for the CTV and PTV, respectively. The mean ± standard deviation Dice Similarity Coefficient and Hausdorff Distance between dCT and TPCT contours was 0.87 ± 0.05 and 0.92 ± 0.03, and 2.0 ± 0.5 mm and 2.0 ± 0.7 mm for the CTV and PTV, respectively. Qualitative questionnaires highlight ‘good’ or ‘acceptable’ agreement between dCT/TPCT reproducibility; localization tattoos were not used for patient setup; and a 6-DoF treatment couch appropriately corrected patient alignment. Booking time was equal to conventional setup and delivery.</div></div><div><h3>Conclusions/Impact</h3><div>Given the number of cases assessed t","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 101924"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subscription","authors":"","doi":"10.1016/S1939-8654(25)00163-8","DOIUrl":"10.1016/S1939-8654(25)00163-8","url":null,"abstract":"","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 102014"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michele Cardoso , Brian Liszewski , Lindsay Vardy , Lauren Oliver , Jason Martel , Mary Manojlovic , Marc Koster , Shayne Allum , Chantal Raymond , Natassia Naccarato
{"title":"Contouring a New Path: Ontario's Collaborative Approach to AI in Radiotherapy","authors":"Michele Cardoso , Brian Liszewski , Lindsay Vardy , Lauren Oliver , Jason Martel , Mary Manojlovic , Marc Koster , Shayne Allum , Chantal Raymond , Natassia Naccarato","doi":"10.1016/j.jmir.2025.101921","DOIUrl":"10.1016/j.jmir.2025.101921","url":null,"abstract":"<div><h3>Purpose/Aim</h3><div>The Radiation Therapy Community of Practice (RThCoP) embarked on a collaborative initiative to explore the implementation of artificial intelligence (AI) auto-contouring tools in radiation therapy planning. This initiative aims to understand the benefits and opportunities of auto-contouring solutions, their impact on program efficiency, and maintaining quality and safety while addressing the diverse needs of radiation therapy programs across multiple centres.</div></div><div><h3>Methods/Process</h3><div>The current state evaluation included representation from all participating regional cancer centres (RCCs) (n=7) using AI contouring tools, ensuring inclusivity and a broad range of perspectives. A series of structured meetings were conducted to gather insights and share experiences regarding AI contouring adoption. Key areas explored included integration into clinical workflows, addressing the learning curve associated with new technology, and measuring efficiency improvements. Feedback from these discussions will be used to develop actionable guidance, supplemented by evidence-based recommendations and consensus-driven best practices.</div></div><div><h3>Results or Benefits/Challenges</h3><div>Currently, three of seven RCCs utilize proprietary auto-contouring solutions embedded in their primary treatment planning system (TPS). Four of seven RCCs use third-party auto-contouring solutions, two of which plan to migrate to their primary TPS's tools in the near future. Regardless of the tools in use, the initiative highlighted several benefits of adopting AI contouring, including reduced planning time, improved consistency in contouring, and enhanced resource allocation. However, opportunities for improvement include addressing variability in vendor solutions, training approaches to enhance confidence in AI-assisted workflows, and mitigating the perceived impact on the scope of practice for radiation therapists. Collaboration among centres allowed for the sharing of strategies to address these challenges, fostering a sense of community and shared learning.</div></div><div><h3>Conclusions/Impact</h3><div>The current state evaluation has provided centres with an initial understanding of the benefits and opportunities for improvement when integrating AI contouring into clinical practice. Early AI adopters reported measurable improvements in workflow efficiency and reductions in inter-clinician variability. The initiative also underscored the importance of fostering a culture of continuous learning and adaptability in adopting emerging technologies. The work of the RThCoP aims to establish a foundation for scaling AI contouring practices across the broader radiation therapy community, with the potential to improve patient outcomes and optimize resource utilization on a larger scale. Most importantly, the initiative underscores the need for the RThCoP in fostering collaboration across Ontario, creating a platform for centres ","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 101921"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bolus: Tissue Equivalent, But are They Equivalent?","authors":"Maya Phillips , Carrie Gerdes","doi":"10.1016/j.jmir.2025.101936","DOIUrl":"10.1016/j.jmir.2025.101936","url":null,"abstract":"<div><h3>Purpose/Aim</h3><div>Bolus is a crucial tool in manipulating radiation dose for disease sites with irregular contours and superficial disease, such as the head and neck disease site. Bolus is made with varied materials across different cancer centers and disease sites. They are determined as “tissue-equivalent” materials based on their density and ability to pull dose superficially. Radiation beams reach their “maximum dose” at a certain depth, depending on energy, because they require a build-up region before depositing their maximum dose. Placing bolus on top of the skin creates a “false” build-up region, meaning maximum dose will be deposited at the skin surface. The purpose of this study is to compare whether PLA (polylactic acid filament) and Vaseline/petroleum gauze bolus are true equivalents considering their difference in positioning, material factors and density.</div></div><div><h3>Methods/Process</h3><div>This study compares PLA (polylactic acid filament) 3D-printed bolus and Vaseline/petroleum gauze bolus on head and neck patients through measuring their accuracy to the planned dose and their inter-fraction variation. Dose to skin was measured in cGy on 3-4 consecutive days of the participating patients’ treatments using a TLDs (thermolumiscent detectors) placed underneath the bolus. The measurements of each patient were analyzed each cohort was compared.</div></div><div><h3>Results or Benefits/Challenges</h3><div>Both boluses had, on average, equivalent accuracy to the planned dose but upon observing CBCTs and bolus positioning with each patient, there were challenges unique to each material. Vaseline bolus’ reproducibility was better than that of 3D, possibly due to the cast being molded over the bolus and keeping it in place. 3D-printed had more uniform thickness than Vaseline but the positioning over the thermoplastic cast presented air gaps and positioning errors that affected its reproducibility.</div></div><div><h3>Conclusions/Impact</h3><div>Overall, both materials were acceptable for treatment but strides can be taken to improve 3D bolus positioning so it will truly be customized to the patient and what contours are most appropriate for each head and neck site.</div></div>","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 101936"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial Board/Masthead","authors":"","doi":"10.1016/S1939-8654(25)00162-6","DOIUrl":"10.1016/S1939-8654(25)00162-6","url":null,"abstract":"","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 102013"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mackenzie Smith, Kathy Carothers, Jamie Lee, Michele Silveira, Hulda Sufrin, Jennifer Suim, Prisheela Yogendran, Colin Myers, Glen Gonzales
{"title":"Thinking Outside the Brachytherapy Suite: A Novel Radiation Therapist-led Approach for Gold Seed Insertions","authors":"Mackenzie Smith, Kathy Carothers, Jamie Lee, Michele Silveira, Hulda Sufrin, Jennifer Suim, Prisheela Yogendran, Colin Myers, Glen Gonzales","doi":"10.1016/j.jmir.2025.101955","DOIUrl":"10.1016/j.jmir.2025.101955","url":null,"abstract":"<div><h3>Purpose/Aim</h3><div>There are 400 patients treated with prostate stereotactic body radiation therapy (SBRT) at our institution annually. To facilitate image guidance, patients require insertion of three gold seeds (GS) prior to simulation, which is a stress on departmental resources given patient volumes. GS are implanted by a Radiation Oncologist in our brachytherapy (BT) suite under local anaesthesia, using trans-rectal ultrasound guidance through the perineum, during limited non-anaesthesia time. Nursing (RN) assumes responsibility for patient teaching, vital signs, and procedural monitoring, while Radiation Therapists (RTTs) are responsible for sterile field and ultrasound preparation, equipment troubleshooting, and patient positioning. Here, we describe a novel and lean RTT-led workflow implemented at our centre for GS insertions for prostate SBRT.</div></div><div><h3>Methods/Process</h3><div>Opportunities for improvement in the existing GS workflow, identified through a mapping exercise, included procedure location, patient education, and task-sharing amongst the interprofessional team. Given limited non-anaesthesia time within our BT suite, our sporadically used orthovoltage bunker was selected as an alternate location and equipped for procedures, with a room layout designed by RTTs to facilitate GS insertion. Updated patient education handouts, encompassing pre- and post-procedure instructions, were developed by RTTs and RNs in conjunction with patient and family education. New patient teaching guidelines were formalized to allow RTTs to assume responsibility. A protocol for RTT-led pre-procedural time-outs was implemented, adapted with RN input from surgical time-outs used for general anaesthesia cases. RTTs were trained in procedural monitoring, covering pre-procedural concerns such as anti-coagulation, indications for vital signs monitoring, and recognizing signs and symptoms of local anaesthetic systemic toxicity, supported by a process map for managing adverse events including guidelines for re-engaging RN support. Surgical documentation was modified in collaboration with RNs for use by RTTs from pre-procedural teaching to patient discharge. RTT-led GS insertions were implemented iteratively, with regular evaluation by the interprofessional team to identify any potential gaps in knowledge and sequential adjustment of the workflow, ensuring continuous quality of patient care.</div></div><div><h3>Results or Benefits/Challenges</h3><div>GS insertions in our orthovoltage bunker can be completed in parallel to procedures in our BT suite, representing significant resource optimization and potential for expansion of our BT program. Our novel workflow represents significant role expansion for RTTs, who now provide continuous care to patients throughout the GS insertion process. Organization of the orthovoltage bunker for use as a procedure room required numerous iterations to achieve optimal functionality. Perceived scope creep fro","PeriodicalId":46420,"journal":{"name":"Journal of Medical Imaging and Radiation Sciences","volume":"56 1","pages":"Article 101955"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}