Navegando por Palavras-chave "tomografia"
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- ItemAcesso aberto (Open Access)Avaliação da artéria etmoidal anterior pela tomografia computadorizada no plano coronal(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2009-02-01) Souza, Soraia Ale [UNIFESP]; Souza, Marcia Maria Ale de [UNIFESP]; Gregório, Luiz Carlos [UNIFESP]; Ajzen, Sergio Aron [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)The anterior ethmoidal artery (AEA) is an important point for frontal and ethmoid sinuses surgery. CT scans can identify landmarks to help the surgeon find the AEA. AIM: To identify the landmarks of the AEA on the orbital medial wall and on the lateral wall of the olfactory fossa. and to correlate the presence of supraorbital ethmoidal cells with spotting the anterior ethmoidal artery canal. MATERIALS AND METHODS: Retrospective review of 198 direct coronal paranasal sinuses computed tomography (CT) scans from August to December, 2006. RESULTS: Supraorbital pneumatization was seen in 35% (70 scans). The AEA canal was seen in 41% (81 scans). The anterior ethmoidal sulcus was seen in 98% (194 scans) and the anterior ethmoidal foramen was seen in all the scans (100%). CONCLUSION: The anterior ethmoidal foramen and the anterior ethmoidal sulcus were anatomical landmarks present in almost 100% of the scans studied. There was a correlation between the presence of supraorbital pneumatization and AEA canal visualization.
- ItemAcesso aberto (Open Access)Estudo comparativo entre achados radiológicos e cirúrgicos na otite média crônica(Fundação Otorrinolaringologia, 2011-03-01) Prata, Anelise Abrahao Salge; Antunes, Marcos Luiz [UNIFESP]; Abreu, Carlos Eduardo Cesario De [UNIFESP]; Frazatto, Ricardo [UNIFESP]; Lima, Bruno Thieme [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); faculdade de medicina do ABC; Hospital Estadual de DiademaINTRODUCTION: The chronic otitis media (COM) is a prevalent disease and the most frequent cause of indication to mastoidectomy. Many studies have evaluated the use of tomography (CT) of temporal bones for preoperative evaluation of COM and its indication in the preoperative approach is still controversial nowadays. OBJECTIVE: To evaluate the sensitivity of the clinical and radiological findings of COM according to the intraoperative surgical results and histopathological findings. METHOD: Transversal retrospective study through collection of record data of patients with COM submitted to mastoidectomy in the period from 2007 through 2008 in our service. RESULTS: From a total of 82 ears, 40.24% had cholesteatoma. The CT presented 72.73% of sensitivity in the identification of cholesteatoma, 56.67% in the identification of changes to the ossicular chain and 100% in that of erosion of the lateral semicircular canal. CONCLUSION: The clinical and radiological findings showed a high level sensitivity with intraoperative findings as regards to the presence of cholesteatoma, large changes of the ossicular chain and erosion of the lateral semicircular canal. For minor changes to the ossicular chain, the facial nerve canal and the tympanic tegmen they described low sensitivity.
- ItemAcesso aberto (Open Access)Exames subsidiários preditivos de crises epilépticas após acidente vascular cerebral isquêmico(Academia Brasileira de Neurologia - ABNEURO, 1997-01-01) Fukujima, Marcia Maiumi [UNIFESP]; Cardeal, Jose Osmar [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)We studied subsidiary laboratorial tests such as serum glucose, red blood cell count, total cholesterol, HDL and LDL cholesterol and triglycerides, eletrocardiogram, eletroencephalogram (EEG), cerebrospinal fluid, and CT scan of 35 patients with cerebral infarction who developed epileptic seizures (group 1 or G1), and compared them to a group of 35 patients who had cerebral infarction but have not developed epileptic seizures (group 2 or G2). The EEG analysis showed significance in the comparison between the groups; focal lentification of the electrical cerebral activity was the most frequent abnormality found in G1. Extensive infarcts were also more frequent in G1. The association of abnormal EEG and extensive lesion on CT may be considered a preditive factor for occurrence of epileptic seizures after cerebral infarction. The analysis of the other tests showed no significance on the comparison between the groups.
- ItemAcesso aberto (Open Access)Osteoma da orelha média(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2007-10-01) Barbosa, Vinicius Cotta; Santos, Marco Aurélio Rocha [UNIFESP]; Becker, Helena Maria Gonçalves; Diniz, Renata Furletti; Hospital Mater Dei; Universidade Federal de São Paulo (UNIFESP); Universidade Federal de Minas Gerais Hospital das Clínicas; Universidade Federal de Minas Gerais Departamento de Otorrinolaringologia, Oftalmologia e Fonoaudiologia
- ItemSomente MetadadadosQuando a fase sem contraste endovenoso é desnecessária nos exames de tomografia computadorizada do abdome?(Universidade Federal de São Paulo (UNIFESP), 2013-02-21) Costa, Danilo Manuel Cerqueira [UNIFESP]; Shigueoka, David Carlos Shigueoka [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Objetivo: Avaliar a necessidade da fase sem contraste nos exames de tomografia computadorizada (TC) de abdome. Materiais e Métodos: Trabalho aprovado pelo CEP da Instituição. Foi realizado um estudo retrospectivo, transversal e observacional, no qual foram avaliados 244 exames consecutivos de TC de abdome realizados sem e com a injeção do meio de contraste (MDC). Procurou-se estabelecer, através da análise das fases com o uso do MDC (primeira análise), e posteriormente com o acréscimo da avaliação da fase sem MDC (segunda análise), o diagnóstico principal e os secundários em função da indicação clínica do exame (estadiamento tumoral, abdome agudo, pesquisa de coleção abdominal e hepatocarcinoma). Foram medidas as mudanças nos diagnósticos principais e secundários, decorrentes do acréscimo da fase sem MC. Resultados: Dos 244 casos avaliados, apenas um (0,4%; p>0,999; N.S.) teve o seu diagnóstico modificado após a leitura da fase sem MDC. Com relação aos diagnósticos secundários, 35 exames (14%) foram modificados após a segunda análise, sendo: nefrolitíase (10%), esteatose (3%), nódulo de adrenal (0,7 %) e colelitíase (0,3%). Conclusão: Para as indicações clínicas de estadiamento tumoral, abdome agudo, pesquisa de coleção abdominal e hepatocarcinoma, a supressão da fase sem MDC não apresentou impacto diagnóstico expressivo.