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01-01-2015 | Hepatobiliary-Pancreas

Impact of contrast-enhanced ultrasound in the study of hepatic artery hypoperfusion shortly after liver transplantation: contribution to the diagnosis of artery steal syndrome

Authors: Ángeles García-Criado, Rosa Gilabert, Luis Bianchi, Ramón Vilana, Marta Burrel, Marta Barrufet, Rafael Oliveira, Juan Carlos García-Valdecasas, Concepción Brú

Published in: European Radiology | Issue 1/2015

Abstract

Objective

To assess the value of contrast-enhanced ultrasound (CEUS) in the absence of hepatic artery signal on Doppler ultrasound (DUS) in the immediate postoperative period after liver transplant.

Methods

This prospective study included 675 consecutive liver transplants. Patients without hepatic artery signal by DUS within 8 days post-transplant were studied with CEUS. If it remained undetectable, a thrombosis was suspected. In patent hepatic artery, a DUS was performed immediately after CEUS; if low resistance flow was detected, an arteriography was indicated. Patients with high resistance waveform underwent DUS+/CEUS follow-up. Arteriography was indicated when abnormal flow persisted for more than 5 days or liver dysfunction appeared.

Results

Thirty-four patients were studied with CEUS. In 11 patients CEUS correctly diagnosed hepatic artery thrombosis. In two out of 23 non-occluded arteries, a low resistance flow lead to a diagnosis of stenosis/proximal thrombosis. Twenty-one patients had absence of diastolic flow, which normalized in the follow-up in 13 patients. In the remaining eight patients, splenic artery steal syndrome (ASS) was diagnosed.

Conclusions

CEUS allows us to avoid invasive tests in the diagnostic work-up shortly after liver transplant. It identifies the hepatic artery thrombosis and points to a diagnosis of ASS.

Key Points

• CEUS is useful in the diagnostic work-up shortly after liver transplant

• CEUS identifies the hepatic artery thrombosis with reliability

• There is little information about DUS and CEUS findings in the ASS

• DUS and CEUS offer functional information useful in the diagnosis of ASS

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Title: Impact of contrast-enhanced ultrasound in the study of hepatic artery hypoperfusion shortly after liver transplantation: contribution to the diagnosis of artery steal syndrome
Authors: Ángeles García-Criado
Rosa Gilabert
Luis Bianchi
Ramón Vilana
Marta Burrel
Marta Barrufet
Rafael Oliveira
Juan Carlos García-Valdecasas
Concepción Brú
Publication date: 01-01-2015
Publisher: Springer Berlin Heidelberg
Published in: European Radiology / Issue 1/2015
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-014-3377-5

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Impact of contrast-enhanced ultrasound in the study of hepatic artery hypoperfusion shortly after liver transplantation: contribution to the diagnosis of artery steal syndrome

Abstract

Objective

Methods

Results

Conclusions

Key Points

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Methods

Results

Conclusions

Key Points

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