reprodutibilidade da classificação ultra-sonográfica de niamey na avaliação da fibrose periportal na esquistossomose mansônica reproducibility of ultrasonography in the assessment of periportal fibrosis according to niamey criteria in patients with schistosomiasis mansoni
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2007
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Abstract
OBJETIVO: Medir a concordância intra- e interobservador da classificação ultra-sonográfica qualitativa para graduar a fibrose periportal adotada no encontro de Niamey em 1996. MATERIAIS E MÉTODOS: No período de fevereiro de 2005 a março de 2006 foi realizado estudo prospectivo, observacional e transversal em 30 pacientes esquistossomóticos, sem outras hepatopatias associadas, submetidos a ultra-sonografia abdominal e classificados segundo os critérios de Niamey. Os exames foram realizados por dois radiologistas de forma independente em diferentes momentos: durante o exame dinâmico (primeiro momento) e 30 e 90 dias depois (segundo e terceiro momentos) do exame, por meio da documentação fotográfica analisada em estação de trabalho. A concordância intra- e interobservador foi avaliada pelo teste kappa. RESULTADOS: A concordância intra-observador medida pelo teste kappa foi 0,43 para o observador 1 e 0,57 para o observador 2. A concordância interobservador durante o estudo dinâmico e na avaliação fotográfica foi, respectivamente, de 0,46 e 0,71. CONCLUSÃO: O uso do ultra-som para classificar a fibrose periportal segundo o protocolo de Niamey apresentou uma reprodutibilidade que variou de moderada a substancial.
OBJECTIVE: To determine the intra- and interobserver agreement in the classification of periportal fibrosis, according to the criteria defined at the Niamey Workshop of 1996. MATERIALS AND METHODS: A prospective, observational and transverse study was developed in the period between February, 2005 and March, 2006, in 30 schistosomal patients with no other hepatic findings associated, submitted to abdominal ultrasound. Ultrasonographic studies were independently performed and reviewed by two radiologists at three different moments: the dynamic examination itself (first moment), 30 and 90 days later (second and third moments), by means of the images review performed in a workstation. Intra- and interobserver agreement was evaluated by means of the kappa test. RESULTS: Intraobserver agreement was 0.43 for the first, and 0.57 for the second observer. Interobserver agreement as regards the dynamic examination and images review was respectively 0.46 and 0.71. CONCLUSION: Ultrasonography demonstrated moderate to substantial reproducibility in the classification of periportal fibrosis according to the Niamey criteria.
OBJECTIVE: To determine the intra- and interobserver agreement in the classification of periportal fibrosis, according to the criteria defined at the Niamey Workshop of 1996. MATERIALS AND METHODS: A prospective, observational and transverse study was developed in the period between February, 2005 and March, 2006, in 30 schistosomal patients with no other hepatic findings associated, submitted to abdominal ultrasound. Ultrasonographic studies were independently performed and reviewed by two radiologists at three different moments: the dynamic examination itself (first moment), 30 and 90 days later (second and third moments), by means of the images review performed in a workstation. Intra- and interobserver agreement was evaluated by means of the kappa test. RESULTS: Intraobserver agreement was 0.43 for the first, and 0.57 for the second observer. Interobserver agreement as regards the dynamic examination and images review was respectively 0.46 and 0.71. CONCLUSION: Ultrasonography demonstrated moderate to substantial reproducibility in the classification of periportal fibrosis according to the Niamey criteria.
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| Authors | ;Germana Titonelli Santos;Danilo Moulin Sales;Alberto Ribeiro de Souza Leão;José Eduardo Mourão Santos;Luciane Aparecida Kopke de Aguiar;Paulo Eugênio Brant;David Carlos Shigueoka;Ramiro Colleoni Neto;Giuseppe D'Ippolito |
| Journal | india international conference on information processing, iicip 2016 - proceedings |
| Year | 2007 |
| DOI |
10.1590/S0100-39842007000600005
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