7 documents found, page 1 of 1
Magnetic resonance imaging of skull and brain parameters in fetuses with intrau...
Oliveira Júnior,Ronaldo Eustáquio de; Teixeira,Sara Reis; Santana,Eduardo Félix Martins; Elias Junior,Jorge; Costa,Fabricio da SilvaAbstract Objective: To compare fetuses with intrauterine growth restriction (IUGR) and those with normal growth, in terms of skull and brain measurements obtained by magnetic resonance imaging (MRI). Materials and Methods: This was a prospective cohort study including 26 single fetuses (13 with IUGR and 13 with normal growth), evaluated from 26 to 38 weeks of gestation. Using MRI, we measured skull and brain bi...
The ABCD of portal vein thrombosis: a systematic approach
Minoda,Alexandre Makoto; Cadete,Raissa Brito Fernandes; Teixeira,Sara Reis; Muglia,Valdair Francisco; Elias Junior,Jorge; Melo-Leite,Andréa Farias deAbstract Portal vein thrombosis refers to complete or partial obstruction of the portal venous system, in the intrahepatic or extrahepatic venous tract or even in the splenic or superior mesenteric veins. This common and potentially fatal condition can develop in various clinical contexts, especially those of liver cirrhosis, hepatocellular carcinoma, and other solid tumors. Certain characteristics, such as the...
Acquired portosystemic collaterals: anatomy and imaging
Leite,Andréa Farias de Melo; Mota Jr.,Américo; Chagas-Neto,Francisco Abaeté; Teixeira,Sara Reis; Elias Junior,Jorge; Muglia,Valdair FranciscoAbstract Portosystemic shunts are enlarged vessels that form collateral pathological pathways between the splanchnic circulation and the systemic circulation. Although their causes are multifactorial, portosystemic shunts all have one mechanism in common-increased portal venous pressure, which diverts the blood flow from the gastrointestinal tract to the systemic circulation. Congenital and acquired collateral ...
Apparent diffusion coefficient of normal adrenal glands
Teixeira,Sara Reis; Elias,Paula Condé Lamparelli; Leite,Andrea Farias de Melo; Oliveira,Tatiane Mendes Gonçalves de; Muglia,Valdair FranciscoAbstract Objective: To assess the feasibility and reliability of apparent diffusion coefficient (ADC) measurements of normal adrenal glands. Materials and methods: This was a retrospective study involving 32 healthy subjects, divided into two groups: prepubertal (PreP, n = 12), aged from 2 months to 12.5 years (4 males; 8 females); and postpubertal (PostP, n = 20), aged from 11.9 to 61 years (5 males; 15 female...
Quantitative computed tomography analysis of the airways in patients with cysti...
Santos,Marcel Koenigkam; Cruvinel,Danilo Lemos; Menezes,Marcelo Bezerra de; Teixeira,Sara Reis; Vianna,Elcio de Oliveira; Elias Júnior,JorgeAbstract Objective: To perform a quantitative analysis of the airways using automated software, in computed tomography images of patients with cystic fibrosis, correlating the results with spirometric findings. Materials and Methods: Thirty-four patients with cystic fibrosis were studied-20 males and 14 females; mean age 18 ± 9 years-divided into two groups according to the spirometry findings: group I (n = 21)...
Whole-body magnetic resonance imaging in children: state of the art
Teixeira,Sara Reis; Elias Junior,Jorge; Nogueira-Barbosa,Marcello Henrique; Guimarães,Marcos Duarte; Marchiori,Edson; Santos,Marcel KoenigkamWhole-body imaging in children was classically performed with radiography, positron-emission tomography, either combined or not with computed tomography, the latter with the disadvantage of exposure to ionizing radiation. Whole-body magnetic resonance imaging (MRI), in association with the recently developed metabolic and functional techniques such as diffusion-weighted imaging, has brought the advantage of a c...
Avaliação por ressonância magnética de massas cardíacas
Braggion-Santos,Maria Fernanda; Koenigkam-Santos,Marcel; Teixeira,Sara Reis; Volpe,Gustavo Jardim; Trad,Henrique Simão; Schmidt,AndréFUNDAMENTO: Tumores cardíacos são extremamente raros; no entanto, quando há suspeita clínica, é necessária a correta avaliação diagnóstica, para planejar o tratamento mais adequado. Nesse contexto, a ressonância magnética cardiovascular tem um papel importante, permitindo uma abrangente caracterização de tais lesões. OBJETIVO: Revisar os casos encaminhados a um Serviço de Ressonância Magnética para investigação...