Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes最新文献_第10页

Developmental Curves of the Paediatric Brain Using FLAIR MRI Texture Biomarkers. 利用 FLAIR MRI 纹理生物标志物绘制儿科大脑发育曲线

IF 2.9 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-07-25 DOI: 10.1177/08465371241262175

Karissa Chan, Dania Rabba, Logi Vidarsson, Matthias W Wagner, Birgit B Ertl-Wagner, April Khademi

{"title":"Developmental Curves of the Paediatric Brain Using FLAIR MRI Texture Biomarkers.","authors":"Karissa Chan, Dania Rabba, Logi Vidarsson, Matthias W Wagner, Birgit B Ertl-Wagner, April Khademi","doi":"10.1177/08465371241262175","DOIUrl":"https://doi.org/10.1177/08465371241262175","url":null,"abstract":"Purpose: Analysis of FLAIR MRI sequences is gaining momentum in brain maturation studies, and this study aimed to establish normative developmental curves for FLAIR texture biomarkers in the paediatric brain. Methods: A retrospective, single-centre dataset of 465/512 healthy paediatric FLAIR volumes was used, with one pathological volume for proof-of-concept. Participants were included if the MRI was unremarkable as determined by a neuroradiologist. An automated intensity normalization algorithm was used to standardize FLAIR signal intensity across MRI scanners and individuals. FLAIR texture biomarkers were extracted from grey matter (GM), white matter (WM), deep GM, and cortical GM regions. Sex-specific percentile curves were reported and modelled for each tissue type. Correlations between texture and established biomarkers including intensity volume were examined. Biomarkers from the pathological volume were extracted to demonstrate clinical utility of normative curves. Results: This study analyzed 465 FLAIR sequences in children and adolescents (mean age 10.65 ± 4.22 years, range 2-19 years, 220 males, 245 females). In the WM, texture increased to a maximum at around 8 to 10 years, with different trends between females and males in adolescence. In the GM, texture increased over the age range while demonstrating a local maximum at 8 to 10 years. Texture had an inverse relationship with intensity in the WM across all ages. WM and edema in a pathological brain exhibited abnormal texture values outside of the normative growth curves. Conclusion: Normative curves for texture biomarkers in FLAIR sequences may be used to assess brain maturation and microstructural changes over the paediatric age range.","PeriodicalId":55290,"journal":{"name":"Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141762797","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}

引用次数: 0

Editor's Corner: November 2024. 编辑园地：2024 年 11 月

IF 2.9 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-07-23 DOI: 10.1177/08465371241264795

Mostafa Alabousi, Abdullah Alabousi, Michael N Patlas

引用次数: 0

Breast Arterial Calcifications on Mammography: Awareness and Reporting Preferences Amongst Referring Physicians in Canada. 乳房 X 射线照相术中的乳房动脉钙化：加拿大转诊医生的认识和报告偏好。

IF 2.9 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-07-23 DOI: 10.1177/08465371241262292

Kaitlin M Zaki-Metias, Hayley McKee, Christopher Applewhaite, Margot K Davis, Mira Keyes, Nathalie LeVasseur, Elsie T Nguyen, Jean M Seely, Charlotte J Yong-Hing

{"title":"Breast Arterial Calcifications on Mammography: Awareness and Reporting Preferences Amongst Referring Physicians in Canada.","authors":"Kaitlin M Zaki-Metias, Hayley McKee, Christopher Applewhaite, Margot K Davis, Mira Keyes, Nathalie LeVasseur, Elsie T Nguyen, Jean M Seely, Charlotte J Yong-Hing","doi":"10.1177/08465371241262292","DOIUrl":"https://doi.org/10.1177/08465371241262292","url":null,"abstract":"Purpose: Breast arterial calcifications (BAC) on mammography have been correlated with increased cardiovascular risk. The Canadian Society of Breast Imaging released a position statement on BAC reporting in January 2023. This study evaluates the awareness of the clinical significance of BAC and reporting preferences of referring physicians in Canada. Methods: A 15-question survey was distributed to Canadian physicians who may review mammography results via regional and subspecialty associations and on social media following local institutional ethical approval. Responses were collected over 10 weeks from February to April 2023. Results: Seventy-two complete responses were obtained. We are unable to determine the response rate, given the means of distribution. Only 17% (12/72) of responding physicians were previously aware of the association between BAC and increased cardiovascular risk, and 51% (37/72) preferred the inclusion of BAC in the mammography report. Fifty-six percent (40/72) indicated that BAC reporting would prompt further investigation, and 63% (45/72) would inform patients that their mammogram showed evidence of BAC. Sixty-nine percent (50/72) would find grading of BAC beneficial and 71% (51/72) agreed that there is a need for national guidelines. Conclusion: Less than a quarter of responding Canadian referring physicians were previously aware of the association between BAC and cardiovascular risk, although half of respondents indicated a preference for BAC reporting on mammography. Most participating physicians would inform their patients of the presence of BAC and consider further cardiovascular risk management. There was consensus that a national BAC grading system and clinical management guidelines would be beneficial.","PeriodicalId":55290,"journal":{"name":"Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141749819","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}

引用次数: 0

Niwiiwaabamaa: Addressing Indigenous Representation in Medicine and Radiology. Niwiiwaabamaa：解决土著人在医学和放射学中的代表性问题。

IF 2.9 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-07-23 DOI: 10.1177/08465371241264798

Kristine A Keon, Tracy Hillier, Michael N Patlas, Charlotte J Yong-Hing

引用次数: 0

Typical and Emerging Diagnostic MRI Features in Multiple Sclerosis. 多发性硬化症的典型和新兴 MRI 诊断特征。

IF 2.9 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-07-23 DOI: 10.1177/08465371241261847

Àlex Rovira, Cristina Auger, Sofía Sceppacuercia, Carlos Torres

{"title":"Typical and Emerging Diagnostic MRI Features in Multiple Sclerosis.","authors":"Àlex Rovira, Cristina Auger, Sofía Sceppacuercia, Carlos Torres","doi":"10.1177/08465371241261847","DOIUrl":"https://doi.org/10.1177/08465371241261847","url":null,"abstract":"Magnetic resonance imaging (MRI) stands as the most sensitive paraclinical technique for detecting the demyelinating lesions characteristic of multiple sclerosis (MS). Consequently, MRI plays a pivotal role in establishing an accurate and timely diagnosis of the disease, ultimately based on the application of the McDonald criteria. Early diagnosis is particularly important as it facilitates the prompt initiation of disease-modifying treatments, deemed most effective during the initial phases of MS. This review article examines the recommended standardized MRI protocol, as well as the classic imaging features of MS in the brain, optic nerve, and spinal cord, capable of discriminating, in most cases, MS from other disorders that can mimic this disease. Additionally, novel MR imaging findings, such as the central vein sign and paramagnetic rim lesion, which have been proposed as new imaging biomarkers to enhance diagnostic specificity for MS, are also discussed. These emerging features are likely to be incorporated in the future iterations of the McDonald criteria, and therefore, radiologists should be familiar with their appearance and with the optimal MRI protocols required for their detection.","PeriodicalId":55290,"journal":{"name":"Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141753438","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}

引用次数: 0

Imaging Features of Immunodeficiency-Associated Primary CNS Lymphoma: A Review. 免疫缺陷相关原发性中枢神经系统淋巴瘤的影像学特征：综述。

IF 2.9 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-06-20 DOI: 10.1177/08465371241259951

Nima Omid-Fard, Paulo Puac-Polanco, Carlos Hernando Torres, Leslie Hamilton, Thanh Binh Nguyen

引用次数: 0

Recommendations to Improve Management of Incidental Pulmonary Nodules in Canada: Expert Panel Consensus. 改善加拿大偶发性肺结节管理的建议：专家小组共识。

IF 3.1 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-06-13 DOI: 10.1177/08465371241257910

Geneviève C Digby, Stephen Lam, Martin C Tammemägi, Christian Finley, Carole Dennie, Stephanie Snow, Jeffrey Habert, Jana Taylor, Anne V Gonzalez, Jonathan Spicer, Jyoti Sahota, Danielle Guy, Paola Marino, Daria Manos

{"title":"Recommendations to Improve Management of Incidental Pulmonary Nodules in Canada: Expert Panel Consensus.","authors":"Geneviève C Digby, Stephen Lam, Martin C Tammemägi, Christian Finley, Carole Dennie, Stephanie Snow, Jeffrey Habert, Jana Taylor, Anne V Gonzalez, Jonathan Spicer, Jyoti Sahota, Danielle Guy, Paola Marino, Daria Manos","doi":"10.1177/08465371241257910","DOIUrl":"https://doi.org/10.1177/08465371241257910","url":null,"abstract":"Introduction: Incidental pulmonary nodules (IPN) are common radiologic findings, yet management of IPNs is inconsistent across Canada. This study aims to improve IPN management based on multidisciplinary expert consensus and provides recommendations to overcome patient and system-level barriers. Methods: A modified Delphi consensus technique was conducted. Multidisciplinary experts with extensive experience in lung nodule management in Canada were recruited to participate in the panel. A survey was administered in 3 rounds, using a 5-point Likert scale to determine the level of agreement (1 = extremely agree, 5 = extremely disagree). Results: Eleven experts agreed to participate in the panel; 10 completed all 3 rounds. Consensus was achieved for 183/217 (84.3%) statements. Panellists agreed that radiology reports should include a standardized summary of findings and follow-up recommendations for all nodule sizes (ie, <6, 6-8, and >8 mm). There was strong consensus regarding the importance of an automated system for patient follow-up and that leadership support for organizational change at the administrative level is of utmost importance in improving IPN management. There was no consensus on the need for standardized national referral pathways, development of new guidelines, or establishing a uniform picture archiving and communication system. Conclusion: Canadian IPN experts agree that improved IPN management should include standardized radiology reporting of IPNs, standardized and automated follow-up of patients with IPNs, guideline adherence and implementation, and leadership support for organizational change. Future research should focus on the implementation and long-term effectiveness of these recommendations in clinical practice.","PeriodicalId":55290,"journal":{"name":"Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141312349","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}

引用次数: 0

Bowel Emergencies in Oncologic Patients. 肿瘤患者的肠道急症

IF 3.1 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-06-04 DOI: 10.1177/08465371241257921

Mariano Scaglione, Stefania Tamburrini, Giacomo Sica, Salvatore Masala

引用次数: 0

Evaluation of a BERT Natural Language Processing Model for Automating CT and MRI Triage and Protocol Selection. 评估 BERT 自然语言处理模型，实现 CT 和 MRI 分诊及方案选择自动化。

IF 3.1 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-06-04 DOI: 10.1177/08465371241255895

Jason Yao, Abdullah Alabousi, Oleg Mironov

{"title":"Evaluation of a BERT Natural Language Processing Model for Automating CT and MRI Triage and Protocol Selection.","authors":"Jason Yao, Abdullah Alabousi, Oleg Mironov","doi":"10.1177/08465371241255895","DOIUrl":"https://doi.org/10.1177/08465371241255895","url":null,"abstract":"Purpose: To evaluate the accuracy of a Bidirectional Encoder Representations for Transformers (BERT) Natural Language Processing (NLP) model for automating triage and protocol selection of cross-sectional image requisitions. Methods: A retrospective study was completed using 222 392 CT and MRI studies from a single Canadian university hospital database (January 2018-September 2022). Three hundred unique protocols (116 CT and 184 MRI) were included. A BERT model was trained, validated, and tested using an 80%-10%-10% stratified split. Naive Bayes (NB) and Support Vector Machine (SVM) machine learning models were used as comparators. Models were assessed using F1 score, precision, recall, and area under the receiver operating characteristic curve (AUROC). The BERT model was also assessed for multi-class protocol suggestion and subgroups based on referral location, modality, and imaging section. Results: BERT was superior to SVM for protocol selection (F1 score: BERT-0.901 vs SVM-0.881). However, was not significantly different from SVM for triage prediction (F1 score: BERT-0.844 vs SVM-0.845). Both models outperformed NB for protocol and triage. BERT had superior performance on minority classes compared to SVM and NB. For multiclass prediction, BERT accuracy was up to 0.991 for top-5 protocol suggestion, and 0.981 for top-2 triage suggestion. Emergency department patients had the highest F1 scores for both protocol (0.957) and triage (0.986), compared to inpatients and outpatients. Conclusion: The BERT NLP model demonstrated strong performance in automating the triage and protocol selection of radiology studies, showing potential to enhance radiologist workflows. These findings suggest the feasibility of using advanced NLP models to streamline radiology operations.","PeriodicalId":55290,"journal":{"name":"Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141238206","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}

引用次数: 0

Investigating Canadian Radiology Residents' Personal Financial Literacy: A Nation-Wide Assessment. 调查加拿大放射科住院医师的个人财务知识：全国性评估。

IF 3.1 3区医学

Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes Pub Date : 2024-05-28 DOI: 10.1177/08465371241255231

Anahita Dehmoobad Sharifabadi, Jonathan Bellini, Abdullah Alabousi, Sandra Monteiro, Arun Mensinkai, Basma Al-Arnawoot

{"title":"Investigating Canadian Radiology Residents' Personal Financial Literacy: A Nation-Wide Assessment.","authors":"Anahita Dehmoobad Sharifabadi, Jonathan Bellini, Abdullah Alabousi, Sandra Monteiro, Arun Mensinkai, Basma Al-Arnawoot","doi":"10.1177/08465371241255231","DOIUrl":"https://doi.org/10.1177/08465371241255231","url":null,"abstract":"Purpose: Canadian resident physicians carry large debt to finance their education, which impacts their wellness and their future decision making. The objective of this observational study is to assess the financial literacy of Canadian radiology residents through testing their financial knowledge and examining their current financial status. Methods: A survey was designed to assess the financial literacy and current financial status of radiology residents, which was distributed to Canadian radiology residents via Google Forms. Descriptive analyses on preliminary data and the association between level of training and financial quiz scores were obtained. Results: 104 valid responses from 16 universities were received. The majority (53%) of residents indicated that their debt was greater than $150 000. Residents on average scored 71% on the financial quiz and the scores were not associated with training level (P = .71). The majority (89%) of residents indicated a strong interest in a formal financial literacy curriculum, with 80% preferring a physician-led curriculum. Conclusion: Overall, residents face a high debt burden. Current resident physicians value a formal financial literacy curriculum as a part of their residency program despite existing financial knowledge. Most importantly, residents feel that a curriculum created with involvement of other physicians would be optimal.","PeriodicalId":55290,"journal":{"name":"Canadian Association of Radiologists Journal-Journal De L Association Canadienne Des Radiologistes","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141158727","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}

引用次数: 0