Accuracy of magnetic resonance imaging for diagnosing hallux valgus
Conclusion: Hallux valgus can be diagnosed by measuring the HVA on MRI, satisfact ory accuracy being achieved with an HVA cutoff of 16.4°.Resumo Objetivo: Avaliar a acur ácia da ressonância magnética (RM) para o diagnóstico de hálux valgo usando radiografias com carga como padrão ouro. Materiais e Métodos: Análise retrospectiva de pacientes que realizaram RM do antepé e radiografias com carga, de janeiro a junho de 2015. O ângulo metatarsofalangiano (AMF) foi medido nas RMs e nas radiografias. O teste de Wilcoxon e regressão linear foram utilizados para comparar as mensurações. Pacientes foram divididos de...
Source: Radiologia Brasileira - April 17, 2020 Category: Radiology Source Type: research
Estimating the productivity of radiologists in Brazil: the search for a benchmark
Conclusion: We demonstrated that the productivity of radiologists is associated with the characteristics of their employment. We hope that this study will encourage other studies aimed at evaluating the productive capacity of the radiologists in Brazil, addressing the various functions they perform in their daily routine, including activities other than issuing reports.Resumo Objetivo: Estimar a produtividade m édia dos radiologistas brasileiros em número de laudos emitidos por perÃodo de trabalho de seis horas, analisando variáveis que possam influenciar os resultados. Materiais e Métodos: Pesquisa realizada por me...
Source: Radiologia Brasileira - April 17, 2020 Category: Radiology Source Type: research
PET/CT and the solitary pulmonary nodule
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - April 17, 2020 Category: Radiology Source Type: research
Imaging methods in the assessment of nonalcoholic fatty liver disease
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - April 17, 2020 Category: Radiology Source Type: research
Information about the new coronavirus disease (COVID-19)
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - April 17, 2020 Category: Radiology Source Type: research
Prevalence of additional primary malignancies detected incidentally on PET/CT
Abstract Hip pain in a child can have infectious, inflammatory, traumatic, neoplastic, or developmental causes, which can make the diagnosis challenging. Meticulous history taking and a detailed clinical examination guide the radiological investigation. In this article, we address some of the main causes of hip pain in childhood and their findings on diagnostic imaging.Resumo A dor do quadril na crian ça pode resultar de causas infecciosas, inflamatórias, traumáticas, neoplásicas ou de desenvolvimento, por vezes gerando desafios diagnósticos. Uma história meticulosa e um exame clÃnico detalhado orientam a investigaÃ...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Hip pain in childhood
Abstract Hip pain in a child can have infectious, inflammatory, traumatic, neoplastic, or developmental causes, which can make the diagnosis challenging. Meticulous history taking and a detailed clinical examination guide the radiological investigation. In this article, we address some of the main causes of hip pain in childhood and their findings on diagnostic imaging.Resumo A dor do quadril na crian ça pode resultar de causas infecciosas, inflamatórias, traumáticas, neoplásicas ou de desenvolvimento, por vezes gerando desafios diagnósticos. Uma história meticulosa e um exame clÃnico detalhado orientam a investigaÃ...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Main complications of hip arthroplasty: pictorial essay
Abstract Hip arthroplasty is a widely used and successful orthopedic procedure for the treatment of degenerative, inflammatory, or traumatic joint disease. The procedure promotes significant pain relief, as well as recovery of limb function, reduction of disability, and better quality of life. However, there are related complications, which have characteristic imaging aspects. In the present study, we review the literature and exemplify such complications using images obtained at our facility, illustrating the main radiological aspects of complications such as heterotopic ossification, periprosthetic fractures, osteolysis,...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Ultrasound elastography in patients with fatty liver disease
Abstract Hepatic steatosis, or fatty liver disease, occurs due to the accumulation of lipids in hepatocytes. When it becomes chronic, lobular inflammation develops and the disease can evolve to hepatic fibrosis, liver cirrhosis, or hepatocellular carcinoma. Early diagnosis is desirable because patients diagnosed in the early stage of the disease respond better to treatment. In the early stages of fatty liver disease, the physical examination is often unremarkable. Fatty liver disease and hepatic fibrosis can be diagnosed and monitored through laboratory tests, imaging, and biopsy. Among the imaging methods, ultrasound stan...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Evaluating inflammatory activity in Crohn’s disease by cross-sectional imaging techniques
The objective of this article is to review the main technical aspects of CTE and MRE, together with their indications, contraindications, and limitations, as well as the CTE and MRE imaging characteristics of inflammatory activity in Crohn ’ s disease.Resumo A avalia ção da atividade inflamatória intestinal em pacientes com doença de Crohn tem sido tradicionalmente um desafio, principalmente pela dificuldade do acesso endoscópico ao intestino delgado. Por muito tempo os estudos baritados foram a única opção disponÃvel, tendo sido progressivamente substi tuÃdos por novas técnicas de imagens seccionais, sendo ho...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Fallopian tube vascularization observed by microfocus computed tomography
Conclusion: The best cutoff value for a quantitative CAD system to classify breast masses was 75%.Resumo Objetivo: Determinar o melhor valor de corte para classificar os n ódulos mamários pela elastografia por ultrassom, usando um software dedicado para elastografia por deformação, e determinar o nÃvel de concordância interobservadores. Materiais e Métodos: Foram incluÃdos no estudo 83 pacientes com 83 massas mamárias identificadas no ultrassom e encaminhado s para biópsia. Após o exame ultrassonográfico no modo B, as lesões foram manualmente segmentadas por três radiologistas com diferentes graus de experi...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Ultrasonographic aspects of the Achilles tendon after tenotomy for the treatment of congenital clubfoot by the Ponseti technique
Conclusion: The best cutoff value for a quantitative CAD system to classify breast masses was 75%.Resumo Objetivo: Determinar o melhor valor de corte para classificar os n ódulos mamários pela elastografia por ultrassom, usando um software dedicado para elastografia por deformação, e determinar o nÃvel de concordância interobservadores. Materiais e Métodos: Foram incluÃdos no estudo 83 pacientes com 83 massas mamárias identificadas no ultrassom e encaminhado s para biópsia. Após o exame ultrassonográfico no modo B, as lesões foram manualmente segmentadas por três radiologistas com diferentes graus de experi...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Breast elastography: diagnostic performance of computer-aided diagnosis software and interobserver agreement
Conclusion: The best cutoff value for a quantitative CAD system to classify breast masses was 75%.Resumo Objetivo: Determinar o melhor valor de corte para classificar os n ódulos mamários pela elastografia por ultrassom, usando um software dedicado para elastografia por deformação, e determinar o nÃvel de concordância interobservadores. Materiais e Métodos: Foram incluÃdos no estudo 83 pacientes com 83 massas mamárias identificadas no ultrassom e encaminhado s para biópsia. Após o exame ultrassonográfico no modo B, as lesões foram manualmente segmentadas por três radiologistas com diferentes graus de experi...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Diagnostic accuracy of retrospective application of the Vesical Imaging-Reporting and Data System: preliminary results
Conclusion: The VI-RADS appears to estimate correctly the degree of muscle invasion in suspicious bladder lesions. However, prospective studies evaluating larger samples are needed in order to validate the method.Resumo Objetivo: O objetivo deste estudo foi avaliar retrospectivamente a acur ácia do Vesical Imaging-Reporting and Data System (VI-RADS) para detectar invasão muscular em câncer de bexiga. Materiais e Métodos: Foram inseridos pacientes submetidos a ressonância magnética pélvica e a ressecção transuretral de bexiga entre 2015 e 2018. Trinta casos foram revisados, se m o conhecimento do estágio clÃnic...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
Use of the LI-RADS classification in patients with cirrhosis due to infection with hepatitis B, C, or D, or infected with hepatitis B and D
Conclusion: Lesions categorized as LI-RADS 5 were detected in approximately 32% of the patients, with almost perfect agreement between the radiologists. The level of agreement was substantial or moderate for the other LI-RADS categories.Resumo Objetivo: Avaliar les ões hepáticas de acordo com a classificação LI-RADS nas tomografias computadorizadas de pacientes com hepatite B, co-infectados ou não com vÃrus delta, e com hepatite C crõnica, e o grau de concordância entre os radiologistas. Materiais e Métodos: Foram incluÃdos 38 pacientes com hepatite B, co-infectados ou não com vÃrus delta, e/ou com hepatite ...
Source: Radiologia Brasileira - February 3, 2020 Category: Radiology Source Type: research
