Interobserver variability of ultrasound parameters in portal hypertension

Interobserver variability of ultrasound parameters in portal hypertension

Author Sebastianes, Patricia Moreno Autor UNIFESP Google Scholar
Sales, Danilo Moulin Autor UNIFESP Google Scholar
Santos, José Eduardo Mourão Autor UNIFESP Google Scholar
Leão, Alberto Ribeiro de Souza Autor UNIFESP Google Scholar
Costa, Juliana Dantas da Autor UNIFESP Google Scholar
Takemoto, Kenji Autor UNIFESP Google Scholar
Capobianco, Júlia Autor UNIFESP Google Scholar
Bezerra, Alexandre Sérgio de Araújo Google Scholar
D'Ippolito, Giuseppe Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade de Brasília Faculdade de Medicina
Abstract The aim of this study was to assess interobserver agreement of ultrasound parameters for portal hypertension in hepatosplenic mansonic schistosomiasis. Spleen size, diameter of the portal, splenic and superior mesenteric veins and presence of thrombosis and cavernous transformation were determined by three radiologists in blinded and independent fashion in 30 patients. Interobserver agreement was measured by the kappa index and intraclass correlation coefficient. Interobserver agreement was considered substantial (κ = 0.714-0.795) for portal vein thrombosis and perfect (κ = 1) for cavernous transformation. Interobserver agreement measured by the intraclass correlation coefficient was excellent for longitudinal diameter of the spleen (r = 0.828-0.869) and splenic index (r = 0.816-0.905) and varied from fair to almost perfect for diameter of the portal (r = 0.622-0.675), splenic (r = 0.573-0.913) and superior mesenteric (r = 0.525-0.607) veins. According to the results, ultrasound is a highly reproducible method for the main morphological parameters of portal hypertension in schistosomiasis patients.
Keywords schistosomiasis
ultrasound
portal hypertension
spleen
Language English
Date 2010-07-01
Published in Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 105, n. 4, p. 409-413, 2010.
ISSN 0074-0276 (Sherpa/Romeo)
Publisher Instituto Oswaldo Cruz, Ministério da Saúde
Extent 409-413
Origin http://dx.doi.org/10.1590/S0074-02762010000400010
Access rights Open access Open Access
Type Article
SciELO ID S0074-02762010000400010 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/5833

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