Radiomics in bone pathology of the jaws.

OBJECTIVE: To define which are and how the radiomics features of jawbone pathologies are extracted for diagnosis, predicting prognosis and therapeutic response. METHODS: A comprehensive literature search was conducted using eight databases and gray literature. Two independent observers rated these articles according to exclusion and inclusion criteria. 23 papers were included to assess the radiomics features related to jawbone pathologies. Included studies were evaluated by using JBI Critical Appraisal Checklist for Analytical Cross-Sectional Studies. RESULTS: Agnostic features were mined from periapical, dental panoramic radiographs, cone beam CT, CT and MRI images of six different jawbone alterations. The most frequent features mined were texture-, shape- and intensity-based features. Only 13 studies described the machine learning step, and the best results were obtained with Support Vector Machine and random forest classifier. For osteoporosis diagnosis and classification, filtering, shape-based and Tamura texture features showed the best performance. For temporomandibular joint pathology, gray-level co-occurrence matrix (GLCM), gray level run length matrix (GLRLM), Gray Level Size Zone Matrix (GLSZM), first-order statistics analysis and shape-based analysis showed the best results. Considering odontogenic and non-odontogenic cysts and tumors, contourlet and SPHARM features, first-order statistical features, GLRLM, GLCM had better indexes. For odontogenic cysts and granulomas, first-order statistical analysis showed better classification results. CONCLUSIONS: GLCM was the most frequent feature, followed by first-order statistics, and GLRLM features. No study reported predicting response, prognosis or therapeutic response, but instead diseases diagnosis or classification. Although the lack of standardization in the radiomics workflow of the included studies, texture analysis showed potential to contribute to radiologists' reports, decreasing the subjectivity and leading to personalized healthcare.

Impact of COVID-19in residency in Oral and Maxillofacial Surgery of the Federal District Public Health System / Impacto da COVID-19 na residência em Cirurgia Buco-Maxilo-Facialda Secretaria de Saúde do Distrito Federal

With the social isolation resulting from the coronavirus pandemic, the residency in Oral and Maxillofacial Surgery of the Federal District Public Health System adapted to maintain the attendance and course schedule. Theoretical classes migrated to online and there was an abrupt change in practical activities, such as the reduction in elective care and newbiosafetyprotocols. The objective of this research was to understand the impact of the pandemic on the residency, including the analysis of perception and the level of satisfaction of the participants regarding online classes and practical activities, analysis of the number and type of surgeries performed in 2020 and residents'attitudes aimedfor professional career, through Likerttypequestionnaires. Only half of the tutors and less than half of the residentswere motivated to use the virtual teaching environment. In addition, the number of surgerieswasreduced by more than 40%. In addition, half of the residents responded that they do not feel capableto resolve unexpected events related to their training and that they are not confident in making decisions regarding theirprofessional career. COVID-19 will continue to have a greater impact on surgical practice, so hospitals should develop a detailed contingency plan, including for pandemics and schools should permanently incorporate options of complementary remote activitiesin their curriculum (AU).

Com o isolamento social decorrente da pandemia de coronavírus, a residência em Cirurgia Buco-Maxilo-Facialda Secretaria de Saúde do Distrito Federalse adaptou para manter o atendimento e o cronograma do curso. Aulas teóricas migraram para onlinee houve abrupta mudança das atividades práticas, como a diminuição do atendimento eletivo e novos protocolos de biossegurança. O objetivo dessa pesquisa foi entender o impacto da pandemia no ensino na residência, incluindo a análise de percepção e do nível de satisfação dos participantes quanto às aulas onlinee atividades práticas, análise do número e tipo de cirurgias realizadas em 2020 e atitudes dos residentes voltadas para carreira profissional, por meio de questionários do tipo Likert. Apenas metade dos preceptores e menos da metade dos residentes estavam motivados a usar o ambiente virtual de ensino. O número de cirurgias foi reduzido em mais de 40%. Além disso, metade dos residentes respondeu que não se sente capaz de resolver eventos inesperados relacionados à sua formação e que não está segura em tomar decisões relativas à sua carreira profissional. A COVID-19 continuará a ter maior impacto na prática cirúrgica, por isso, hospitais devem desenvolver um plano de contingência detalhado, inclusive para o caso de futuras pandemias e escolas devem incorporar opções de atividades remotas complementares permanentemente em seu currículo (AU).