Interobserver variability of ultrasound parameters in portal hypertension
Mem. Inst. Oswaldo Cruz
;
105(4): 409-413, July 2010. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-554805
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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Système porte
/
Maladies de la rate
/
Schistosomiase à Schistosoma mansoni
/
Thrombose veineuse
/
Hypertension portale
/
Parasitoses hépatiques
Type d'étude:
Étude observationnelle
/
Étude de prévalence
/
Facteurs de risque
Limites du sujet:
Adulte
/
Adulte très âgé
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2010
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Universidade Federal de São Paulo/BR
/
Universidade de Brasília/BR
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