首页|Contrast-enhanced ultrasound evaluation of hepatic microvascular changes in liver diseases

Contrast-enhanced ultrasound evaluation of hepatic microvascular changes in liver diseases

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AIM:To assess if software assisted-contrast-enhanced ultrasonography (CEUS) provides reproducible perfusion parameters of hepatic parenchyma in patients affected by chronic liver disease.METHODS:Forty patients with chronic viral liver disease,with (n =20) or without (n =20) cirrhosis,and 10 healthy subjects underwent CEUS and video recordings of each examination were then analysed with Esaote's Qontrast software.CEUS dedicated software Qontrast was used to determine peak (the maximum signal intensity),time to peak (TTP),region of blood value (RBV) proportional to the area under the time-intensity curve,mean transit time (MTT) measured in seconds and region of blood flow (RBF).RESULTS:Qontrast-assisted CEUS parameters displayed high inter-observer reproducibility (k coefficients of 0.87 for MTT and 0.90 TTP).When the region of interest included a main hepatic vein,Qontrast-calculated TTP was significantly shorter in cirrhotic patients (vs non-cirrhotics and healthy subjects) (71.0 ± 11.3 s vs 82.4 ± 15.6 s,86.3 ± 20.3 s,P ＜ 0.05).MTTs in the patients with liver cirrhosis were significantly shorter than those of controls (111.9 ± 22.0 s vs 139.4 ± 39.8 s,P ＜ 0.05),but there was no significant difference between the cirrhotic and non-cirrhotic groups (111.9 ± 22.0 s vs 110.3 ± 14.6 s).Peak enhancement in the patients with liver cirrhosis was also higher than that observed in controls (23.9 ± 5.9 vs 18.9 ± 7.1,P =0.05).There were no significant intergroup differences in the RBVs and RBFs.CONCLUSION:Qontrast-assisted CEUS revealed reproducible differences in liver perfusion parameters during the development of hepatic fibrogenesis.

Contrast enhanced ultrasoundCirrhosisHepatitisLiver perfusionHepatic microcirculation

Francesco Ridolfi、Teresa Abbattista、Paolo Busilacchi、Eugenio Brunelli

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Division of Gastroenterology, Principe di Piemonte Hospital, 60019 Senigallia, AN,Italy

Division of Radiology, Principe di Piemonte Hospital, 60019 Senigallia, AN, Italy

SIUMB School of Ultrasound of Ancona,Principe di Piemonte Hospital, 60019 Senigallia, AN, Italy

2012

10.3748/wjg.v18.i37.5225

世界胃肠病学杂志(英文版)
太原消化病研治中心

世界胃肠病学杂志(英文版)

SCI
影响因子：1.001
ISSN：1007-9327
年,卷(期)：2012.18(37)
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