Increased Liver Stiffness: A Study of Acoustic Radiation Force Impulse (ARFI) Elastography



Status:Recruiting
Conditions:Gastrointestinal
Therapuetic Areas:Gastroenterology
Healthy:No
Age Range:2 - 5
Updated:3/15/2019
Start Date:April 11, 2018
End Date:December 1, 2020
Contact:Frank DiPaola, MD
Email:dipaolaf@umich.edu
Phone:734-763-9650

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The goal of this study is to determine if ultrasound tools can be used to detect liver
stiffness. Acoustic radiation force impulse (ARFI) elastography and backscatter will be used
to see if they can detect liver stiffness in different populations of patients with liver
disease.

The study is measuring liver stiffness in pediatric patients aged 2-5 years. Patients either
have had a Fontan cardiac surgery or have liver disease.

Ultrasound scanning takes images of the liver and has much lower risks for patients. ARFI
elastography and other tools can be used to measure liver stiffness.

If patients have liver congestion, reversing it could prevent liver fibrosis, which cannot be
treated. Liver fibrosis has serious health risks and is associated with a higher chance of
developing liver cancer later in life.

Subjects from two patient populations will be enrolled in order to test ultrasound
technologies. A total of 30 subjects between 2-5 years of age will be enrolled.

1. 15 children with increased liver stiffness due to the Fontan operation

2. 15 children with increased liver stiffness caused by Biliary Atresia.

Inclusion Criteria:

- Patients aged 2-5 years

- Children who are scheduled to have a Stage 3 Fontan cardiac operation (arm 1) AND
Children who have chronic liver disease caused by biliary atresia (arm 2)

- Patient must be receiving care at the University of Michigan CS Mott Children's
Hospital

- Parent/guardian must be willing to sign the study consent form

Exclusion Criteria:

- For arm 1 subjects: pre-existing evidence of chronic liver disease (as defined by
chronic elevation (over 4 weeks) of alanine aminotransferase (ALT), aspartate
aminotransferase (AST), or conjugated bilirubin to greater than two times the upper
limit of normal

- For arm 1 subjects: evidence of overt liver nodularity by conventional US imaging or
evidence of portal vein or hepatic vein thrombosis (clots) by US Doppler exam
We found this trial at
1
site
1540 East Hospital Drive
Ann Arbor, Michigan 48109
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from
Ann Arbor, MI
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