Results: 90

Recommendations from the Brazilian society of rheumatology for the diagnosis of Sjögren's syndrome (Part I): glandular manifestations (systematic review)

Adv Rheumatol; 59 (), 2019
Abstract Background: Primary Sjögren's syndrome (pSS) is a systemic immune-mediated disease whose main characteristic is exocrine gland inflammation and, subsequent reduction in tear and saliva production. A delayed diagnosis is common due to the nonspecific clinical manifestations of disease. The aim ...

Cardiovascular Manifestations of Erdheim-Chester's Disease: A Case Series

Arq. bras. cardiol; 111 (6), 2018
Abstract Erdheim-Chester Disease is a rare entity, classified as an inflammatory myeloid neoplasm, with an unknown incidence, occurring preferentially in men after 50 years of age. Classically, it has a multisystemic presentation, with the skeletal system being the most frequently affected (90% of the pa...

Fluorodeoxyglucose-positron emission tomography staging can replace bone marrow biopsy in Hodgkin's lymphoma. Results from Brazilian Hodgkin's Lymphoma Study Group

ABSTRACT Objective: To investigate, in a large prospective multicenter study, whether 2-[18F]-fluoro-2-deoxy-D-glucose-positron emission tomography is sufficiently accurate to identify clinically important bone marrow involvement by Hodgkin's lymphoma to replace routine bone marrow biopsy in a developin...

Utilidad de la tomografia por emisión de positrones - tomografia computada para el diagnóstico de neurosarcoidosis. A propósito de un caso

Rev. colomb. reumatol; 25 (3), 2018
Resumen El diagnóstico de la neurosarcoidosis es difícil por su polimorfismo clínico y radiológico, y cualquier parte del sistema nervioso central puede estar afectado. Presentamos el caso de una paciente joven con cefalea, meningitis linfocitaria subaguda, en quien a pesar de estudios bioquímicos e...

Los beneficios de la pesquisa de cáncer de pulmón mediante tomografía computada de baja dosis podrían superar los potenciales riesgos de la radiación
The benefits of lung cancer screening using low dose computerized tomography could be greater than the potential harms of radiation

Support vector machine-based classification of neuroimages in Alzheimer's disease: direct comparison of FDG-PET, rCBF-SPECT and MRI data acquired from the same individuals

Objective: To conduct the first support vector machine (SVM)-based study comparing the diagnostic accuracy of T1-weighted magnetic resonance imaging (T1-MRI), F-fluorodeoxyglucose-positron emission tomography (FDG-PET) and regional cerebral blood flow single-photon emission computed tomography (rCBF-SPEC...

Cáncer metastásico con primario desconocido. Una revisión

Resumen El tumor metastásico no siempre tiene un origen evidente, hasta en un tercio de los casos nunca se encuentra el tumor primario. Este artículo es una guía de los avances más recientes para mejorar el enfoque diagnóstico y el manejo del paciente con este tumor fatal y frecuente. El objetivo de...

PET-TC, rol y fundamentos de su uso en la especialidad de otorrinolaringología y cirugía de cabeza y cuello

RESUMEN El PET-TC es un examen de alto costo y que expone a los pacientes a altas dosis de radiación comparado con las imágenes que habitualmente solicitamos, es por esto que hemos revisado la literatura, explicamos las bases de este tipo de examen, los rendimientos esperados, falsos positivos y negati...

Argentina-Alzheimer's disease neuroimaging initiative (Arg-ADNI): neuropsychological evolution profile after one-year follow up

Arq. neuropsiquiatr; 76 (4), 2018
ABSTRACT The Argentina-Alzheimer's disease neuroimaging initiative (Arg-ADNI) study is a longitudinal prospective cohort of 50 participants at a single institution in Buenos Aires, Argentina. Longitudinal assessments on a neuropsychological test battery were performed on 15 controls, 24 mild cognitive im...

Correlation of the ADC values assessed by diffusion-weighted MRI and 18F–FDG PET/ CT SUV in patients with lung cancer

Appl. cancer res; 38 (), 2018
Background: Diffusion-weighted magnetic resonance imaging (DW-MRI) provides information on the cellularity and movement of water molecules in tissues and 18F–fluorodeoxyglucose (18F–FDG) positron emission tomography/computed tomography (18F–FDG PET/CT) assesses cellular glucose metabolism, however ...