1996
DOI: 10.1053/jhep.1996.v23.pm0008621130
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Splenic Doppler impedance indices: Influence of different portal hemodynamic conditions

Abstract: impedance indices significantly decreased compared The spleen plays a pivotal role in the pathogenesis with other cirrhotic patients (RI and PI P õ .0001). In and maintenance of portal hypertension. Few data exist patients who underwent liver transplantation, splenic about splenic hemodynamics evaluated by duplex soimpedance indices were the same as those in controls. nography in this condition. Twenty-six normal subjects, In 23 of the 52 patients surgically treated (surgical shunt 207 patients with portal hyp… Show more

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Cited by 21 publications
(32 citation statements)
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References 4 publications
(4 reference statements)
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“…The same mechanism has been 4,1998 hypothesized to explain that splenic artery RI did not decrease in cirrhosis despite the increase in splenic blood flow caused by splenic enlargement. 28 In conclusion, our study demonstrates that in patients with alcoholic cirrhosis, only portal vein blood velocity and flow, but neither HA nor SMA RI, exhibit a significant correlation with HVPG and with the severity of liver failure. However, because of the scattering of the data, the quantitative measurement of portal velocity or flow has a limited utility in predicting either hepatic venous gradient or severity of liver failure in an individual patient.…”
Section: Resultsmentioning
confidence: 52%
“…The same mechanism has been 4,1998 hypothesized to explain that splenic artery RI did not decrease in cirrhosis despite the increase in splenic blood flow caused by splenic enlargement. 28 In conclusion, our study demonstrates that in patients with alcoholic cirrhosis, only portal vein blood velocity and flow, but neither HA nor SMA RI, exhibit a significant correlation with HVPG and with the severity of liver failure. However, because of the scattering of the data, the quantitative measurement of portal velocity or flow has a limited utility in predicting either hepatic venous gradient or severity of liver failure in an individual patient.…”
Section: Resultsmentioning
confidence: 52%
“…For instance, increased Doppler impedance indices of hepatic and splenic arteries have been described in previous studies. 3,4 Haag et al 5 used the congestion index (CI) of the portal vein, which is defined as the ratio of crosssectional area to a portal flow velocity exceeding 0.1 cm/s -1 to diagnose PHT. Other methods used to diagnose PHT include the liver vascular index (LVI), 3 the hepatic buffer index (HBI) proposed by Iwao et al, 6 and the portal hypertension index (PHI).…”
mentioning
confidence: 99%
“…Portal blood velocity was calculated as time averaged maximum velocity multiplied by 0.57, assuming the portal velocity profile as parabolic, as previously reported [13,14]. Similarly, hepatic artery velocity was calculated as time averaged maximum velocity multiplied by 0.62, as previously reported [7,8].…”
Section: Hbf By Doppler Ultrasound (Us-hbf)mentioning
confidence: 93%
“…Portal blood flow (PBF) and hepatic artery blood flow (HABF) were obtained by multiplying the portal vein cross-sectional area, assuming a circular shape of the portal vein and hepatic artery section, by the mean velocity of blood flow in the vessel [10,13,14] according to the following formula:…”
Section: Hbf By Doppler Ultrasound (Us-hbf)mentioning
confidence: 99%