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[Diagnostic value of the hepatic echo-histogram in chronic hepatopathy]
G Castellano1, A González, F Colina
1Departamento de Anatomía Patológica, Hospital Universitario 12 de Octubre, Madrid.
Insights
Liver echohistograms enhance abdominal ultrasound for diagnosing chronic hepatitis and fatty liver disease by analyzing echo intensity patterns. This combined approach improves diagnostic accuracy for these common liver conditions.
Area of Science:
- Medical Imaging
- Hepatology
- Diagnostic Ultrasound
Background:
- Chronic diffuse liver diseases present diagnostic challenges.
- Abdominal ultrasound is a primary imaging modality.
- Liver echohistogram offers quantitative analysis of liver tissue echogenicity.
Purpose of the Study:
- To evaluate histogram patterns of liver echohistograms.
- To assess the diagnostic efficacy of liver echohistograms in chronic diffuse liver diseases.
- To determine if liver echohistograms enhance abdominal ultrasound diagnostic capabilities.
Main Methods:
- Prospective, blind performance of abdominal ultrasound and liver echohistograms.
- Inclusion of healthy controls and patients with chronic hepatitis, liver cirrhosis, and fatty liver disease.
- Analysis of echo intensity and echogenicity parameters, including anterior/posterior ratios.
Main Results:
- Decreased liver echo intensity in chronic hepatitis.
- Distinct echogenicity patterns in fatty liver disease (increased anterior, decreased posterior).
- Enhanced diagnostic efficacy for chronic hepatitis and fatty liver disease with specific echohistogram parameters; no enhancement for liver cirrhosis.
Conclusions:
- Liver echohistograms improve the diagnostic efficacy of abdominal ultrasound for chronic hepatitis and fatty liver disease.
- Specific echohistogram metrics aid in differentiating these conditions.
- Combined ultrasound and echohistogram approach is recommended for investigating diffuse liver diseases.
Abstract:
The aim of this study was to determine the histogram patterns and the diagnostic efficacy of liver echohistogram in chronic diffuse liver diseases. Abdominal ultrasound and liver echo-histogram were prospectively and blindly performed on 21 healthy controls, 24 patients with chronic hepatitis, 26 patients with liver cirrhosis, and 22 patients with fatty liver disease. Maximum liver echo intensity and echogenicity were decreased in chronic hepatitis. Increased anterior maximum liver echo intensity and echogenicity, decreased posterior maximum liver echo intensity and echogenicity, and reduced posterior/anterior maximum liver echogenicity ratio were found in fatty liver disease. The diagnostic efficacy indexes of abdominal ultrasound were enhanced by some echo-histogram data: anterior maximum echo intensity of the liver less than 20.52 decibels for chronic hepatitis and posterior/anterior maximum liver echogenicity ratio less than 0.231 for fatty liver disease. In liver cirrhosis, echohistogram showed a high dispersion of values and not enhanced the abdominal ultrasound diagnostic efficacy. In fatty liver disease, a positive correlation was found between percentage of hepatocytes with fatty change and anterior maximum echo intensity of the liver (rs = 0.47, p < 0.05), as well as between percentage of hepatocytes with fatty change and anterior maximum echogenicity of the liver (rs = 0.68, p < 0.01). These findings indicate that the liver echo-histogram improves the diagnostic efficacy of abdominal ultrasound in chronic hepatitis and fatty liver disease. We suggest that combined abdominal ultrasound and liver echo-histogram should be performed in the investigation of chronic diffuse liver diseases.