8 documents found, page 1 of 1
Manual versus semiautomatic segmentation of soft-tissue sarcomas on magnetic re...
Dionisio,Fernando Carrasco Ferreira; Oliveira,Larissa Santos; Hernandes,Mateus de Andrade; Engel,Edgard Eduard; Azevedo-Marques,Paulo Mazzoncini deAbstract Objective: To evaluate the degree of similarity between manual and semiautomatic segmentation of soft-tissue sarcomas on magnetic resonance imaging (MRI). Materials and Methods: This was a retrospective study of 15 MRI examinations of patients with histopathologically confirmed soft-tissue sarcomas acquired before therapeutic intervention. Manual and semiautomatic segmentations were performed by three ...
COMPLICATIONS AND COST ANALYSIS OF HEMIPELVECTOMY FOR THE TREATMENT OF PELVIC T...
Benatto,Mariana Tedeschi; Hussein,Amira Mohamede; Gava,Nelson Fabrício; Maranho,Daniel Augusto; Engel,Edgard EduardABSTRACT Objective: Hemipelvectomy is a complex surgery with a high complication rate. Here, we aimed to identify factors related to the onset of complications and calculate their impacts on hospital costs. Methods: We evaluated 31 consecutive patients who underwent hemipelvectomy between 1999 and 2015. We assessed the clinical and radiographic data to determine the patients’ demographic factors, tumor and surg...
Diagnostic performance of magnetic resonance imaging in the assessment of perio...
Sá Neto,José Luiz de; Simão,Marcelo Novelino; Crema,Michel Daoud; Engel,Edgard Eduard; Nogueira-Barbosa,Marcello HenriqueAbstract Objective: To evaluate the performance of magnetic resonance imaging (MRI) in detecting periosteal reactions and to compare MRI and conventional radiography (CR) in terms of the classification of periosteal reactions. Materials and Methods: Retrospective study of 42 consecutive patients (mean age, 22 years; 20 men) with a confirmed diagnosis of osteosarcoma or Ewing's sarcoma, MRI and CR images having ...
Incidence and causes of lower-limb amputations in the city of Ribeirão Preto fr...
Barbosa,Bruna Maria Bueno; Monteiro,Rosane Aparecida; Sparano,Lucas Françolin; Bareiro,Rodolfo Fabiano Niz; Passos,Afonso Dinis CostaABSTRACT: Objective: It was to identify trends of traumatic and non-traumatic causes of lower limb amputations, as well as the role played by population aging, traffic violence increase, public health policy of diabetes control program and drivers anti-alcohol laws on these amputations. Method: Hospitalization data recorded in the discharge forms of 32 hospitals located in the region of Ribeirão Preto, Brazil, ...
Physical and mechanical characterization of a porous cement for metaphyseal bon...
Cimatti,Bruno; Engel,Edgard Eduard; Nogueira-Barbosa,Marcello Henrique; Frighetto,Paulo Donato; Volpon,José BatistaOBJECTIVE: Macroporous cement with mechanical properties similar to cancellous bone may improve the treatment of large bone defects in relation to solid acrylic cement. The aim of this study was to compare physical and mechanical characteristics of a polymethyl methacrylate (PMMA) based porous cement with cancellous bone. METHODS: Compressive strength and pore size, interconnectivity, and distribution of cylind...
Incidental enchondromas at knee magnetic resonance imaging: intraobserver and i...
Nakamura,Sandra Akemi; Lorenzato,Mário Müller; Engel,Edgard Eduard; Yamashita,Maurício Eiji de Almeida Santos; Nogueira-Barbosa,Marcello HenriqueObjective To evaluate intra- and interobserver agreement in the identification of incidental enchondromas at knee magnetic resonance imaging, and to assess the prevalence of imaging findings. Materials and Methods Retrospective study reviewing 326 knee magnetic resonance images acquired in the period between November 2009 and September 2010. The images were independently and blindly analyzed by two specialists ...
Ressonância magnética na avaliação das reações periosteais
Nogueira-Barbosa,Marcello Henrique; Sá,José Luiz de; Trad,Clóvis Simão; Oliveira,Rodrigo Cecílio Vieira de; Elias Júnior,Jorge; Engel,Edgard EduardO objetivo deste ensaio iconográfico é estimular a avaliação cuidadosa das reações periosteais nas imagens de ressonância magnética. A abordagem inicial das lesões ósseas é realizada por meio das radiografias simples e pela avaliação destas se faz a classificação das reações periosteais em subtipos clássicos. Embora a ressonância magnética seja considerada o padrão ouro para o estadiamento regional das neoplasi...
Apresentações incomuns no diagnóstico por imagem do pseudotumor intraósseo do h...
Santos,Marcel Koenigkam; Polezi,Mariana Basso; Engel,Edgard Eduard; Pastorello,Mônica Tempest; Simão,Marcelo Novelino; Elias Junior,JorgeOBJETIVO: Este estudo tem como objetivo descrever apresentações incomuns do pseudotumor do hemofílico no diagnóstico por imagem. MATERIAIS E MÉTODOS: Estudo retrospectivo com avaliação de cinco pseudotumores ósseos do hemofílico em dois pacientes. Os achados de imagem em dois pacientes hemofílicos tipo A foram avaliados em consenso por dois radiologistas musculoesqueléticos. Foram estudados exames de radiografi...