alexa Association of Doppler Wave Pattern of Hepatic Veins an
ISSN: 2167-0889

Journal of Liver
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Research Article

Association of Doppler Wave Pattern of Hepatic Veins and Fatty Liver Disease Degree

Cibele F Carvalho1*, Márcia M Jerico2, Bruno Cogliati3, Thassila C F Cintra4 and Maria Cristina Chammas5
1Diplomate of the Brazilian College of Veterinary Radiology, Institute of Radiology, University of São Paulo, SP, Brazil
2Private Practice Endocrinology, São Paulo, SP, Brazil
3Department of Pathology of Veterinary Medicine School, University of São Paulo, SP, Brazil
4Private Practice Ultrasonography, São Paulo, SP, Brazil
5Diplomate of the Brazilian College of Radiology, Institute of Radiology, University of São Paulo, SP, Brazil
Corresponding Author : Carvalho CF
Travessa Leon Berry, 116. 01402-030 -São Paulo, SP, Brazil
Tel: 55 11 3884 2168
E-mail: [email protected]
Received November 07, 2014; Accepted January 15, 2015; Published January 19, 2015
Citation: Carvalho CF, Jerico MM, Cogliati B, Cintra TCF, Chammas MC (2015) Association of Doppler Wave Pattern of Hepatic Veins and Fatty Liver Disease Degree. J Liver 4:174. doi: 10.4172/2167-0889.1000174
Copyright: © 2015 Carvalho CF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


The objective of this study was to document the progressive effects of fatty infiltration of the liver on hepatic veins (HVs) by measuring Doppler waveforms in groups of rats and dogs. All of the groups underwent hepatic B-mode and duplex Doppler sonography. B-mode fatty infiltration was classified into four degrees corresponding to increasing grades of hepatic echogenicity for all groups: (0) absent, (1) mild, (2) moderate and (3) severe fatty infiltration. Histograms were obtained in all dogs to standardise each grade of hepatic echogenicity and an increasing distribution of grey-levels was found according to the grade of fatty infiltration of the liver in obese dogs. The Doppler sonography spectra of HVs were classified into three groups: normal or triphasic waveforms, biphasic waveforms, and monophasic or flat waveforms. Obese dogs (60%) and rats (100%) with fatty infiltration of the liver presented biphasic or flat right HV Doppler waveforms more often than control dogs and rats, and these differences were statistically significant (p = 0.002 for dogs and p = 0.0028 for rats). None of the control dogs and rats had monophasic waveforms. These findings suggest there is an association between wave form pattern of hepatic veins and the degree of fatty liver disease.


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