Use of lung ultrasound in neonates during the COVID-19 pandemic
In this study we present ultrasound images of the lungs of neonates with a suspected or confirmed diagnosis of COVID-19, distinguishing between the changes related to COVID-19 and those unrelated to the disease. Ultrasound examinations were performed by a pediatric sonographer. A total of 27 neonates were evaluated. Among those who presented no respiratory symptoms, some tested negative for COVID-19 and others tested positive. All of those who were pulmonary symptomatic, negative for COVID-19 presented transient tachypnea of the newborn and respiratory distress syndrome. Lung ultrasound images obtained in COVID-19-negative...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Fighting the invisible enemy: providing support and structure to radiology resident during the COVID-19 pandemic
The objective of this article is to share the strategy we used in order to restructure the radiology and diagnostic imaging department of a referral institution during the coronavirus disease 2019 pandemic, on the basis of the current recommendations. It is essential to integrate the work of supervisors, preceptors, and residents, maintaining communication and sharing decisions, with mutual support, as well as to determine the best strategy to be adopted in this scenario of uncertainty and constant change, while also ensuring adequate emotional support for all parties.Resumo O objetivo deste artigo é compartilhar a estrat...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Hemorrhagic complications after percutaneous nephrolithotomy: angiographic diagnosis and management by transcatheter arterial embolization
Conclusion: Because of its high diagnostic accuracy, CTA provides the interventional radiologist with valuable data for individualized therapeut ic planning. The TAE procedure is safe and effective. It can therefore be used as a first-line treatment for hemorrhagic complications resulting from percutaneous renal procedures.Resumo Objetivo: Demonstrar as principais complica ções hemorrágicas após nefrolitotripsia percutânea, bem como os resultados após o tratamento por embolização arterial transcateter (EAT) em um centro de radiologia intervencionista. Materiais e Métodos: Coleta e análise de dados retrospectivo...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Value of adding the apparent diffusion coefficient to capsular contact for the prediction of extracapsular extension in prostate cancer
Conclusion: For the detection of microscopic ECE on mpMRI, CC appears to have good diagnostic accuracy, especially if the observer has considerable experience. Adding the mean ADC to the CCT2 or CCDWI does not seem to provide any significant improvement in that diagnostic accuracy.Resumo Objetivo: Avaliar se o coeficiente de difus ão aparente (apparent diffusion coefficient - ADC) médio tem valor incremental ao contato capsular (CC) na predição da extensão extracapsular (EEC) do câncer de próstata. Materiais e Métodos: De janeiro de 2012 a dezembro de 2016, 383 pacientes realizaram ressonância magnética multipa...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Prevalence of patellar chondropathy on 3.0 T magnetic resonance imaging
Conclusion: There was a high prevalence of patellar chondropathy in patients who had undergone high-field knee MRIs (79.2%), being highest in the female gender and in subjects above 40 years of age. The most prevalent group was graded as 4 by the International Cartilage Repair Society classification.Resumo Objetivo: Estabelecer a preval ência de condropatia patelar em exames de ressonância magnética (RM) em campo de 3,0 T e associar os achados com características como gênero, idade e índice de massa corporal. Materiais e Métodos: Foram coletados exames de RM de joelho em campo magnético de 3.0 T no período de ou...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Effect of the acromial inferolateral tilt on subacromial impingement syndrome: a retrospective magnetic resonance imaging assessment
Conclusion: Inferolateral acromial tilt may have some impact on subacromial impingement syndrome; however, the best quantification method identified (glenoacromial angle) showed a moderate interobserver agreement and a fair performance to assess the risk of complete supraspinatus tendon rupture.Resumo Objetivo: Avaliar a contribui ção da inclinação inferolateral do acrômio na síndrome do impacto subacromial. Materiais e Métodos: A inclinação inferolateral do acrômio foi quantificada retrospectivamente por dois pesquisadores em 346 ressonâncias magnéticas de ombro por meio dos ângulos glenoacromial (entre a s...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Posterior cingulate gyri metabolic alterations in HIV-positive patients with and without memory deficits
Conclusion: HIV-positive patients with and without memory deficits had significantly higher choline/creatine ratios than controls in the posterior cingulate gyri, which may reflect cerebral inflammation, altered cell membrane metabolism, microgliosis, and/or astrocytosis.Resumo Objetivo: N ós avaliamos se os pacientes HIV-positivos com e sem déficits de memória clinicamente significativos e controles saudáveis diferem na espectroscopia de prótons do giro do cíngulo posterior, por ressonância magnética (RM) cerebral. Materiais e Métodos: Vinte e um pacientes HIV-positivos com déficit de memória foram comparado...
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
When discussing the impact of AI on radiology, just remember: radiology is an infinite game
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
1H-MRS for characterizing metabolic alterations in HIV-positive patients with and without memory deficits
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - November 20, 2020 Category: Radiology Source Type: research
Tumors of the broad ligament: what and when to suspect such rare location
Abstract Although secondary involvement of the broad ligament by malignant tumors arising elsewhere in the abdomen and pelvis is common, primary tumors in this location are rare. Tumors of the broad ligament can be of mesenchymal and mixed nature, such as leiomyoma, the most common neoplasm; epithelial tumors of M üllerian type, imposing a challenge to differentiate them from other adnexal masses; unique tumors from mesonephric origin; and tumor-like lesions. Most neoplasms in this region, whether benign or malignant, usually present clinically with vague symptoms and are often discovered during a routine gy necological e...
Source: Radiologia Brasileira - October 3, 2020 Category: Radiology Source Type: research
Percutaneous access for the diagnosis of urothelial neoplasms: pictorial essay with anatomopathological correlation
Abstract Urothelial carcinoma is a rare malignant neoplasm, accounting for only 5% to 7% of kidney tumors and 5% of urothelial tumors. During the management of urothelial carcinoma, anatomopathological evaluation is used for stratifying the tumors into different prognostic groups to aid in the evaluation of treatment results and to optimize the management of patients. Percutaneous image-guided biopsy is a safe and feasible procedure, with high sensitivity and accuracy rates. Although image-guided percutaneous biopsy of the urinary tract is a relatively uncommon procedure, it can be considered an option in selected cases or...
Source: Radiologia Brasileira - October 3, 2020 Category: Radiology Source Type: research
Soft tissue calcifications: a pictorial essay
Abstract Soft-tissue calcifications are extremely common. Because the imaging findings are nonspecific, soft-tissue calcifications are often problematic for radiologists, sometimes prompting unnecessary interventions. In addition, the nomenclature is quite confusing. Classically, soft-tissue calcifications are divided into four categories, by mechanism of formation-dystrophic, iatrogenic, metastatic, and idiopathic-depending on the clinical and biochemical correlation. However, it is also possible to classify such calcifications by compartment, and that classification can be quite useful in the radiological diagnostic asse...
Source: Radiologia Brasileira - October 3, 2020 Category: Radiology Source Type: research
Placental adhesion disorder: magnetic resonance imaging features and a proposal for a structured report
Abstract Placental adhesion disorder encompasses the various types of abnormal placentation that occur when the chorionic villi penetrate the uterine wall. Placenta accreta has become more common, mainly because of the increasing rates of cesarean section. Although ultrasound is the first-line imaging modality for evaluation of the placenta, it plays a limited role in cases of posterior placenta accreta and inconclusive findings. In such cases, magnetic resonance imaging (MRI) is indicated, mainly because it is a more accurate means of identifying placental invasion of extrauterine structures in high-risk pregnant women. I...
Source: Radiologia Brasileira - October 3, 2020 Category: Radiology Source Type: research
COVID-19: a brief update for radiologists
Abstract Coronavirus disease 2019 (COVID-19), which is caused by a new coronavirus-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-is a pandemic with major impacts on the health care sector, and a broad view of the disease is of fundamental importance for any radiologist. The purpose of this review is to address the main clinical and imaging aspects of COVID-19, as well as guidelines for requesting and using imaging methods; measures to protect patients and health care professionals; systems for quantifying pulmonary findings and preparing integrated reports; and the main innovations that have emerged during t...
Source: Radiologia Brasileira - October 3, 2020 Category: Radiology Source Type: research
Craniometric parameters for the evaluation of platybasia and basilar invagination on magnetic resonance imaging: a reproducibility study
Conclusion: The measurement of the CCA, WBA, and DOCL appears to show excellent intraobserver repr oducibility and interobserver agreement on MRI.Resumo Objetivo: Realizar um estudo de reprodutibilidade do ângulo clivocanal (ACC), ângulo basal de Welcker (ABW) e distância do odontoide à linha de Chamberlain (DOLC) em ressonância magnética (RM). Materiais e Métodos: Quatro examinadores, dois graduandos de medicina e dois radiologistas, avaliaram, respectivamente, 100 e 50 indivíduos adultos su bmetidos a RM de crânio, consecutiva e aleatoriamente. Cada um realizou duas leituras para cada paciente em diferentes oc...
Source: Radiologia Brasileira - October 3, 2020 Category: Radiology Source Type: research
