203 documents found, page 1 of 21
Concomitant COVID-19 and pulmonary tuberculosis: computed tomography aspects
Mançano,Alexandre Dias; Zanetti,Gláucia; Marchiori,EdsonAbstract Objective: To describe the relationship between coronavirus disease 2019 (COVID-19) and pulmonary tuberculosis during the current pandemic, as well as to describe the main computed tomography (CT) findings in patients suffering from both diseases simultaneously. Materials and Methods: This was a retrospective, cross-sectional observational study of the chest CT scans of 360 patients with COVID-19, as c...
Incidental findings on lung cancer screening: pictorial essay and systematic ch...
Penha,Diana; Pinto,Erique; Monaghan,Colin; Hochhegger,Bruno; Marchiori,Edson; Taborda-Barata,Luís; Irion,Klaus; Ravara,Sofia; Kauczor,Hans-UlrichABSTRACT Lung cancer screening (LCS) programs are increasing worldwide. Incidental findings (IFs) on LCS are defined as low-dose CT findings unrelated to the primary purpose of identifying lung cancer. Most IFs on LCS are benign and clinically insignificant but are being increasingly recognized, and some require urgent referral for further diagnostic workup. Other findings are expected and are known as smoking-...
Expiratory CT scanning in COVID-19 patients: can we add useful data?
Costa,Ruhana Dalla; Zanon,Matheus; Watte,Guilherme; Altmayer,Stephan Philip Leonhardt; Mohammed,Tan-Lucien; Verma,Nupur; Backer,Jan De; Lavon,Ben RABSTRACT Objective: To evaluate small airway disease in COVID-19 patients using the prevalence of air trapping (AT) and correlating it with clinical outcomes. The relationship between CT-based opacities in small blood vessels and ventilation in patients with SARS-CoV-2 pneumonia was also assessed. Methods: We retrospectively included 53 patients with positive RT-PCR results for SARS-CoV-2 between March and Apri...
Incidental chest findings on coronary CT angiography: a pictorial essay and man...
Pinto,Erique; Penha,Diana; Hochhegger,Bruno; Monaghan,Colin; Marchiori,Edson; Taborda-Barata,Luís; Irion,KlausABSTRACT Many health systems have been using coronary CT angiography (CCTA) as a first-line examination for ischaemic heart disease patients in various countries. The rising number of CCTA examinations has led to a significant increase in the number of reported incidental extracardiac findings, mainly in the chest. Pulmonary nodules are the most common incidental findings on CCTA scans, as there is a substantia...
Tomographic findings in bronchial atresia
Puglia,Elazir Barbosa Mota Di; Rodrigues,Rosana Souza; Daltro,Pedro Augusto; Souza Jr.,Arthur Soares; Paschoal,Marilene Monteiro; Labrunie,Ester MoraesAbstract Objective: To evaluate computed tomography (CT) findings in 23 patients with bronchial atresia. Materials and Methods: The CT images were reviewed by two radiologists who reached decisions by consensus. We included only patients who presented with abnormalities on CT and in whom the diagnosis had been confirmed by pathological examination of the surgical specimen (if the lesion was resected). The CT sc...
Non-neoplastic intracranial cystic lesions: not everything is an arachnoid cyst
Pereira,Ronaldo Gonçalves; Ribeiro,Bruno Niemeyer de Freitas; Hollanda,Rafael Teixeira de Lima; Almeida,Letícia Baldez de; Simeão,Thalita BaptistaAbstract Intracranial cystic lesions are common findings on neuroimaging examinations, arachnoid cysts being the most common type of such lesions. However, various lesions of congenital, infectious, or vascular origin can present with cysts. In this pictorial essay, we illustrate the main causes of non-neoplastic intracranial cystic lesions, discussing their possible differential diagnoses as well as their most...
Need for analgesia after percutaneous liver biopsy: a real-life experience
Amaral,Ricardo Holderbaum do; Deprez,Fabrice C.; Dalla-Bona,João Pedro; Watte,Guilherme; Roxo,Rômulo Santos; Marchiori,Edson; Hochhegger,BrunoAbstract Objective: To evaluate variables affecting the need for analgesia after ultrasound-guided percutaneous liver biopsy performed on an outpatient basis. Materials and Methods: This was a retrospective analysis of 1,042 liver biopsies performed between 2012 and 2018. The data collected included the age and sex of the patient, as well as self-reported pain in the recovery room, the pain treatment used, the ...
Diffusion-weighted magnetic resonance imaging for differentiating between benig...
Santos,Francisco de Souza; Verma,Nupur; Watte,Guilherme; Marchiori,Edson; Mohammed,Tan-Lucien H.; Medeiros,Tássia Machado; Hochhegger,BrunoAbstract Objective: To establish the diagnostic performance of diffusion-weighted magnetic resonance imaging (DWI) in discriminating malignant from non-malignant thoracic lymph nodes. Materials and Methods: This was a meta-analysis involving systematic searches of the MEDLINE, EMBASE, and Web of Science databases up through April 2020. Studies reporting thoracic DWI and lymph node evaluation were included. The ...
Evaluation of neuroimaging findings in thalamic lesions: what can we think?
Ribeiro,Bruno Niemeyer de Freitas; Marchiori,EdsonAbstract The diseases that affect the thalamus are heterogeneous in their etiologies, including infectious, inflammatory, vascular, toxic-metabolic, and neoplastic causes. It is often difficult to make the clinical differentiation between different entities. Within this context, computed tomography and magnetic resonance imaging have come to be of fundamental importance for defining the etiology and planning th...
MRI-based differentiation between lymphoma and sarcoidosis in mediastinal lymph...
Santos,Francisco de Souza; Verma,Nupur; Marchiori,Edson; Watte,Guilherme; Medeiros,Tássia M; Mohammed,Tan-Lucien H; Hochhegger,BrunoABSTRACT Objective: Evaluation of enlarged mediastinal lymph nodes is crucial for patient management. Malignant lymphoma and sarcoidosis are often difficult to differentiate. Our objective was to determine the diagnostic accuracy of MRI for differentiating between sarcoidosis and malignant lymphoma. Methods: This was a retrospective study involving 47 patients who underwent chest MRI and were diagnosed with one...