13 documents found, page 1 of 2
Learning curve of radiology residents during training in fluoroscopy-guided fac...
Dias,Tiago Rocha; Alves Junior,João de Deus da Costa; Abdala,NitamarAbstract Objective: To develop a simulator for training in fluoroscopy-guided facet joint injections and to evaluate the learning curve for this procedure among radiology residents. Materials and Methods: Using a human lumbar spine as a model, we manufactured five lumbar vertebrae made of methacrylate and plaster. These vertebrae were assembled in order to create an anatomical model of the lumbar spine. We used...
MORPHOMETRIC STUDY OF THE AREOLAR SPACE BETWEEN THE GREAT VESSELS AND THE LUMBA...
Marchi,Luis; Oliveira,Leonardo; Amaral,Rodrigo; Fortti,Fernanda; Pimenta,Luiz; Abdala,NitamarObjective : This work aims to study the areolar space anterior to the lumbar spine, and also the positioning of the large vessels focusing a lateral approach. Methods :This is a morphometric study of 108 cases based on T2 weighted-MRI images in the supine position. The following measurements were performed: lumbar and segmental lordosis; anteroposterior disc diameter; space between the disc/vertebral body and t...
Diagnóstico diferencial das lesões inflamatórias e infecciosas do cone medular ...
Carvalho,Gustavo Balthazar da Silveira; Sandim,Gabriel Barbosa; Tibana,Luis Antônio Tobaru; Tertulino,Franklin Freitas; Idagawa,Marcos HidekiO cone medular é frequentemente acometido por lesões de etiologia inflamatória e infecciosa, muitas vezes de difícil diferenciação devido a história clínica e exame físico semelhantes entre as diversas entidades. A ressonância magnética apresenta alta sensibilidade na detecção de lesões no cone medular e tem importante papel no diagnóstico e controle evolutivo. Este ensaio iconográfico com casos selecionados do...
Análise do masseter, por espectroscopia de próton, em pacientes com esclerose s...
Marcucci,Marcelo; Abdala,NitamarOBJETIVO: Avaliar a concentração de metabólitos no masseter em portadores de esclerose sistêmica, analisando os índices de creatina, colina, lipídio e lactato, e relacionar com a presença de osteólise mandibular. MATERIAIS E MÉTODOS: Foram selecionados 25 pacientes, sendo 15 com diagnóstico de esclerose sistêmica e agrupados de acordo com a presença (grupo I) ou ausência (grupo II) de osteólise, e 10 indivíduos...
Espectroscopia por ressonância magnética no diagnóstico do câncer de próstata: ...
Melo,Homero José de Farias e; Szejnfeld,Denis; Paiva,Cristiano Silveira; Abdala,Nitamar; Arruda,Homero Oliveira de; Goldman,Suzan MenasceOBJETIVO: Demonstrar a experiência na implantação de um protocolo de espectroscopia por ressonância magnética do 1H tridimensional (3D 1H MRSI), disponível comercialmente, aplicando-o em pacientes com suspeita de neoplasia prostática e com diagnóstico estabelecido de tumor prostático. MATERIAIS E MÉTODOS: Estudo realizado de forma prospectiva, em 41 pacientes com idades entre 51 e 80 anos (média de 67 anos). Do...
Clinical and radiographic study of orofacial alterations in patients with syste...
Marcucci,Marcelo; Abdala,NitamarSystemic sclerosis (SS) is an autoimmune disease with great repercussions on the hard and soft tissues of the orofacial region. The aim of this study was to investigate the relationship between mandibular osteolysis and mouth opening measurements, duration of disease and presence/absence of teeth. Twenty-five subjects were selected: 15 diagnosed with systemic sclerosis and 10 healthy controls. The SS patients w...
Neuromyelitis optica: brain abnormalities in a Brazilian cohort
Bichuetti,Denis Bernardi; Rivero,René Leandro Magalhães; Oliveira,Daniel May; Souza,Nilton Amorin de; Abdala,Nitamar; Oliveira,Enedina Maria LobatoNeuromyelitis optica (NMO) is a demyelinating disease consisting of relapsing-remitting optic neuritis and myelitis with a more severe course than Multiple Sclerosis. Recently, it has been shown that almost 50% of patients with NMO can have brain magnetic resonance imaging (MRI) abnormalities. We report on six Brazilian patients with NMO, fulfilling the 1999 Wingerchuck criteria for this disease, with abnormal ...
Temporal pole signal abnormality on MR imaging in temporal lobe epilepsy with h...
Carrete Junior,Henrique; Abdala,Nitamar; Lin,Kátia; Caboclo,Luís Otávio; Centeno,Ricardo Silva; Sakamoto,Américo Ceiki; Szjenfeld,JacobOBJECTIVE: To determine the frequency and regional involvement of temporal pole signal abnormality (TPA) in patients with hippocampal sclerosis (HS) using fluid-attenuated inversion-recovery (FLAIR) MR imaging, and to correlate this feature with history. METHOD: Coronal FLAIR images of the temporal pole were assessed in 120 patients with HS and in 30 normal subjects, to evaluate gray-white matter demarcation. R...
Basal encephalocele associated with morning glory syndrome: case report
Minotto,Ivanete; Abdala,Nitamar; Miachon,Adriana Aparecida Siviero; Spinola e Castro,Angela Maria; Imamura,Paulo; Nogueira,Roberto GomesThe basal encephaloceles refer to rare entities and they correspond to herniation of brain tissue through defects of skull along the cribiform plate or the sphenoid bone. A rare morning glory syndrome, with characteristic retinal defect has been reported in association with basal encephaloceles. Hypophysis hormonal deficiencies may occur. We accounted for a pituitary dwarfism with delayed diagnosed transsphenoi...
Modelo simulador para treinamento de punção transpedicular em vertebroplastia p...
Abdala,Nitamar; Oliveira,Ricardo Abdala da Silva; Alves Junior,João de Deus da Costa; Spinola,TulioOBJETIVO: Desenvolver e testar a similaridade de modelo de coluna lombar tipo manequim para treinamento de punção transpedicular em vertebroplastia percutânea. MATERIAIS E MÉTODOS: Foram confeccionadas 30 vértebras lombares à base, principalmente, de metacrilato, gesso e etil-vinil-acetato, a partir de molde de borracha baseado em vértebra humana. Os discos intervertebrais foram feitos com silicone para que hou...