Noninvasive Staging of Liver Fibrosis: MR vs Ultrasound (ELF)
Comparison of Magnetic Resonance and Ultrasound Elastography With Liver Biopsy for Noninvasive Staging of Liver Fibrosis
Liver fibrosis is an important public health problem, with a substantial morbidity and mortality due to progression to cirrhosis and hepatocellular carcinoma. All causes of chronic liver disease may lead to fibrosis. The traditional diagnostic approach requires a biopsy for assessing the severity of liver disease prior to therapy.
However, liver biopsy has several limitations: cost, sampling error, and procedure-related morbidity and mortality. Considering the high prevalence of viral hepatitis and nonalcoholic fatty liver disease, a condition often associated with obesity and type 2 diabetes, there is an urgent need for noninvasive screening, diagnosis and monitoring strategies of chronic liver disease severity.
Our team has the expertise to investigate ultrasound-based and magnetic resonance-based elastographic methods for the noninvasive staging of liver fibrosis.
The primary objective of this cross-sectional study is to compare the sensitivity of elastographic methods for detecting histology-determined significant fibrosis.
The secondary objectives are to compare the diagnostic accuracy of these elastographic methods and the influence of potential confounders (inflammation, steatosis and iron deposition) on their diagnostic accuracy.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Background: Liver fibrosis is an important public health problem, with a substantial morbidity and mortality due to cirrhosis (the end stage) and hepatocellular carcinoma. All causes of chronic liver disease may lead to fibrosis. The amount of fibrosis determines the prognosis and influences the response to treatment of chronic liver disease.
Several elastographic methods have been proposed for noninvasive detection and staging of liver fibrosis. Transient elastography (Fibroscan) is widely used by clinicians. Acoustic radiation force impulse (ARFI) is an elastography technique recently integrated in clinical ultrasound systems that may provide similar diagnostic performance to transient elastography. Magnetic resonance elastography (MRE) is a new method that can be integrated to a liver MRI study, which would allow liver stiffness, steatosis, iron overload and inflammation quantification in chronic liver disease.
Objectives: 1) To compare the sensitivity of MRE and ARFI for detecting histology-determined significant fibrosis (F ≥ 2). Secondary objectives: 2) To compare the diagnostic accuracy of MRE, ARFI and Fibroscan for predicting histology-determined fibrosis stages. 3) To determine the influence of inflammation, steatosis, and iron deposition on the diagnostic accuracy of MRE, ARFI and Fibroscan for predicting fibrosis. 4) To determine thresholds optimizing sensitivity of ARFI and Fibroscan to screen patients and optimizing specificity of MRE to confirm liver fibrosis stage.
Design: This will be a cross-sectional imaging trial comparing feasibility, diagnostic and fibrosis staging accuracy of stiffness measurements by elastographic methods in 108 patients with chronic liver disease, using histopathology as the reference standard. Paired index tests (MRE, ARFI and Fibroscan) will be performed as research procedures in close temporal proximity to the reference test (liver biopsy).
Inclusion criteria: consecutive adult patients with known or suspected chronic liver disease secondary to hepatitis B virus, hepatitis C virus, or nonalcoholic fatty liver disease (NAFLD) undergoing a liver biopsy for clinical indications.
Exclusion criteria: any contraindication to MRI, refusal to participate or provide informed consent, pregnant women, any other cause of chronic liver disease than hepatitis B, hepatitis C or NAFLD.
Type d'étude
Inscription (Réel)
Contacts et emplacements
Lieux d'étude
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Quebec
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Montreal, Quebec, Canada, H2X 0A9
- Centre Hospitalier de l'Université de Montréal
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- are adults;
- must undergo a liver biopsy as part of their clinical standard of care for suspected or known chronic liver disease caused by HBV, HCV or NASH;
- understand French or English instruction;
- Autoimmune Hepatitis
Exclusion Criteria:
- have any contra-indication to MRI (such as claustrophobia, pacemaker, metallic clips for a neurosurgical procedure);
- are pregnant or trying to become pregnant;
- have a weight or girth preventing them from entering the MR magnet bore;
- are unable to understand or unwilling to provide written informed consent for this study.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Hepatis C, Hepatitis B, NAFLD
All patients enrolled will undergo:
|
Transient elastography (Fibroscan) Acoustic Radiation Force Impulse (ARFI) Magnetic Resonance Elastography (MRE)
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
|
Histology-determined fibrosis stage
Délai: Within 6 weeks of elastographic methods
|
Within 6 weeks of elastographic methods
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
|---|---|
|
Fraction de graisse de densité de protons basée sur l'imagerie par résonance magnétique (IRM) (PDFF)
Délai: Dans les 6 semaines suivant la biopsie du foie
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Dans les 6 semaines suivant la biopsie du foie
|
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Fibroscan-determined liver stiffness
Délai: Within 6 weeks of liver biopsy
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Within 6 weeks of liver biopsy
|
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Acoustic Radiation Force Impulse (ARFI)-determined liver stiffness
Délai: Within 6 weeks of liver biopsy
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Within 6 weeks of liver biopsy
|
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Magnetic Resonance Elastography (MRE)-determined liver stiffness
Délai: Within 6 weeks of liver biopsy
|
Within 6 weeks of liver biopsy
|
|
Magnetic Resonance Imaging (MRI) cine-tagging of cardiac-induced motion for staging liver fibrosis
Délai: Within 6 weeks of liver biopsy
|
Within 6 weeks of liver biopsy
|
Collaborateurs et enquêteurs
Publications et liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Maladies du système digestif
- Processus pathologiques
- Infections par virus à ARN
- Maladies virales
- Infections
- Infections transmissibles par le sang
- Maladies transmissibles
- Infections à Flaviviridae
- Hépatite, virale, humaine
- Infections à Hépadnaviridae
- Infections par le virus de l'ADN
- Infections à entérovirus
- Infections à Picornaviridae
- Maladies du foie
- Fibrose
- Hépatite B
- Hépatite
- Hépatite A
- Hépatite C
- Foie gras
- La cirrhose du foie
- Stéatose hépatique non alcoolique
Autres numéros d'identification d'étude
- CE12.062
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