eISSN: 2449-8238
ISSN: 2392-1099
Clinical and Experimental Hepatology
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2/2021
vol. 7
 
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abstract:
Original paper

The effect of water intake on ultrasound tissue characteristics and hemodynamics of adult livers

Jason Lee
1
,
Rebecca Lee
1
,
Todd Erpelding
2
,
Roger L. Siddoway
3
,
Jing Gao
1

  1. Rocky Vista University, USA
  2. Canon Medical Systems, USA
  3. Utah Gastroenterology, USA
Clin Exp HEPATOL 2021; 7, 2: 223-230
DOI: https://doi.org/10.5114/ceh.2021.107068
Online publish date: 2021/07/13
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Introduction
To assess the effect of water intake on ultrasound tissue characteristics and hemodynamics of adult livers.

Material and methods
In February 2020, we prospectively performed ultrasound shear wave elastography and attenuation imaging (ATI) of the liver parenchyma, and spectral Doppler sonography of the portal vein and hepatic artery in 19 adult healthy volunteers (10 men and 9 women, mean age 27 years, mean body mass index 24.65 kg/m2). We measured liver shear wave velocity (SWV, m/s), shear wave dispersion (SWD, m/s/kHz), attenuation coefficient (dB/cm/MHz), main portal vein velocity (PVV, cm/s), hepatic artery peak systolic velocity (PSV, cm/s), and end diastolic velocity (EDV, cm/s) immediately before and at different time points (15, 30, 45, and 60 minutes) after water intake (1.0 l water and 1.5 l water for body weight < 150 lbs. and ≥ 150 lbs., respectively).

Results
The differences in SWV, PVV, hepatic artery PSV and EDV before and after water intake were significant (p < 0.01) whereas the differences in SWD and ATI were not (p > 0.05) based on repeated measures ANOVA tests. The values of SWV, PVV, PSV, and EDV reached a peak at 30-45 minutes and returned to baseline 60 minutes after water intake. We observed positive correlations of SWV with PVV, PSV, and EDV in linear regression analyses (r2 > 0.73).

Conclusions
Water intake affects the liver stiffness and hemodynamics. No water intake at least one hour prior to liver ultrasound elastography and Doppler sonography is recommended.

keywords:

Doppler sonography, liver, shear wave elastography, ultrasound
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