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Besutti G, Valenti L, Ligabue G, et al. Accuracy of imaging methods for steatohepatitis diagnosis in non-alcoholic fatty liver disease patients: A systematic review. Liver Int. 2019;39(8):1521-1534doi: 10.1111/liv.14118.
Besutti, G., Valenti, L., Ligabue, G., Bassi, M. C., Pattacini, P., Guaraldi, G., & Giorgi Rossi, P. (2019). Accuracy of imaging methods for steatohepatitis diagnosis in non-alcoholic fatty liver disease patients: A systematic review. Liver international : official journal of the International Association for the Study of the Liver, 39(8), 1521-1534. https://doi.org/10.1111/liv.14118
Besutti, Giulia, et al. "Accuracy of imaging methods for steatohepatitis diagnosis in non-alcoholic fatty liver disease patients: A systematic review." Liver international : official journal of the International Association for the Study of the Liver vol. 39,8 (2019): 1521-1534. doi: https://doi.org/10.1111/liv.14118
Besutti G, Valenti L, Ligabue G, Bassi MC, Pattacini P, Guaraldi G, Giorgi Rossi P. Accuracy of imaging methods for steatohepatitis diagnosis in non-alcoholic fatty liver disease patients: A systematic review. Liver Int. 2019 Aug;39(8):1521-1534. doi: 10.1111/liv.14118. Epub 2019 May 08. PMID: 30972903.
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Liver Int. 2019 Aug;39(8):1521-1534. doi: 10.1111/liv.14118. Epub 2019 May 08.

Accuracy of imaging methods for steatohepatitis diagnosis in non-alcoholic fatty liver disease patients: A systematic review.

Liver international : official journal of the International Association for the Study of the Liver

Giulia Besutti, Luca Valenti, Guido Ligabue, Maria Chiara Bassi, Pierpaolo Pattacini, Giovanni Guaraldi, Paolo Giorgi Rossi

Affiliations

  1. Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy.
  2. Radiology Unit, Azienda Unità Sanitaria Locale-IRCCS of Reggio Emilia, Reggio Emilia, Italy.
  3. Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy.
  4. Translational Medicine, Department of Transfusion Medicine and Hematology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
  5. Radiology Unit, University of Modena and Reggio Emilia, Modena, Italy.
  6. Medical Library, Azienda Unità Sanitaria Locale-IRCCS of Reggio Emilia, Reggio Emilia, Italy.
  7. Modena HIV Metabolic Clinic, University of Modena and Reggio Emilia, Modena, Italy.
  8. Epidemiology Unit, Azienda Unità Sanitaria Locale-IRCCS of Reggio Emilia, Reggio Emilia, Italy.

PMID: 30972903 DOI: 10.1111/liv.14118

Abstract

BACKGROUND & AIMS: Non-invasive tests to diagnose non-alcoholic steatohepatitis (NASH) are urgently needed. This systematic review aims to evaluate imaging accuracy in diagnosing NASH among non-alcoholic fatty liver disease (NAFLD) patients, using liver biopsy as reference.

METHODS: Eligible studies were systematic reviews and cross-sectional/cohort studies of NAFLD patients comparing imaging with histology, considering accuracy and/or associations. MEDLINE, Scopus, EMBASE and Cochrane Library databases were searched up to April 2018. Studies were screened on title/abstract, then assessed for eligibility on full-text. Data were extracted using a predesigned form. Risk of bias was assessed using Quality Assessment of Diagnostic Accuracy Studies-2 tool.

RESULTS: Of the 641 studies screened, 61 were included in scoping review, 30 of which (with accuracy results) in data synthesis. Imaging techniques included: elastography (transient elastography-TE, acoustic radiation force impulse-ARFI, magnetic resonance elastography-MRE), ultrasound (US), magnetic resonance (MR), computed tomography and scintigraphy. Histological NASH definition was heterogeneous. In 28/30 studies, no prespecified threshold was used (high risk of bias). AUROCs were up to 0.82 for TE, 0.90 for ARFI, 0.93 for MRE and 0.82 for US scores. MR techniques with higher accuracy were spectroscopy (AUROC = 1 for alanine), susceptibility-weighted imaging (AUROC = 0.91), multiparametric MR (AUROC = 0.80), optical analysis (AUROC = 0.83), gadoxetic acid-enhanced MR (AUROCs = 0.85) and superparamagnetic iron oxide-enhanced MR (AUROC = 0.87). Results derived mostly from single studies without independent prospective validation.

CONCLUSIONS: There is currently insufficient evidence to support the use of imaging to diagnose NASH. More studies are needed on US and MR elastography and non-elastographic techniques, to date the most promising methods.

© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Keywords: magnetic resonance; non-alcoholic fatty liver disease; non-alcoholic steatohepatitis; ultrasonography

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