Contribuição da ultra-sonografia no diagnostico das doenças hepaticas difusas cronicas

AUTOR(ES)
DATA DE PUBLICAÇÃO

1992

RESUMO

In order to evaluate the contribution of ultrasonography for the diagnosis of chronic liver diseases and to standardize the ultrasonographic exam of the liver in the Gastroenterology Clinic of UNICAMP, 114 patients have been studied, all of them both clinically and/or laboratory suspected of suffering from a Chronic Liver Disease. Whit all the patients, the echographic exam followed the same routine: study of the surface, edges (left and right), alterations of the hepatic parenchyma and of the hepatorenal contrasto Furthermore, all patients have been submitted to hepatic biopsy, for the anatomicopathologic exam. The sensitivity of the ultrasonographyc method in relation to the anatomicopathologic method has been checked, and the validity both of such exams and their predictive positive values have been calculated. By using the criterion of exclusion, 14 patients have been eliminated from the study , there remaining a total of 100 patients. Through ultrasonography, the diagnoses of cirrhosis, schistosomiasis and steatosis may be made with a sensitivity of 100%, 100% and 80%, respectively. The ultrasonographic signals most characteristic of hepatic cirrhosis are: alterations in the surface, edges, parenchyma and vasculature, in high degrees. In schistosomiasis, the ultrasonografic signals are the periportal fibrosis, in a moderated to a high degree, as well as of alterations in the surface and edge, in a light to moderate degree. In steatosis, the ultrasonographic signals are of blotting of the supra-hepatic vases (discreet alteration), with discreetly dull edges, and the presence of hepatorenal contrast, in a moderated to high degree. The other chronic liver diseases (excluding the ones named hereinabove) have bee named in this study "other chronic liver diseases". 19 patients have been included in such group and had their alterations standardized in an aleatory manner. Ultrasonography, when carried out in accordance with the aforesaid standardization, is an exam which has a great importance for the diagnosis of chronic liver diseases, and should be mandatory in such cases, preceding the hepatic biopsies

ASSUNTO(S)

aparelho digestivo - doenças ultra-som na medicina

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