Interobserver variability of ultrasound parameters in portal hypertension
Mem. Inst. Oswaldo Cruz
; 105(4): 409-413, July 2010. ilus, tab
Article
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| LILACS
| ID: lil-554805
Biblioteca responsable:
BR1.1
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 (ê = 0.714-0.795) for portal vein thrombosis and perfect (ê = 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.
Palabras clave
Texto completo:
1
Índice:
LILACS
Asunto principal:
Sistema Porta
/
Enfermedades del Bazo
/
Esquistosomiasis mansoni
/
Trombosis de la Vena
/
Hipertensión Portal
/
Parasitosis Hepáticas
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Adult
/
Aged
/
Female
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Humans
/
Male
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Año:
2010
Tipo del documento:
Article