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Bauer DJM, Matic V, Mare R, Maiocchi L, Chromy D, Müllner-Bucsics T, Mandorfer M, Mustapic S, Sporea I, Ferraioli G, Grgurevic I, Reiberger T. Point Shear Wave Elastography by ElastPQ for Fibrosis Screening in Patients with NAFLD: A Prospective, Multicenter Comparison to Vibration-Controlled Elastography. Ultraschall Med 2023; 44:169-178. [PMID: 35226932 PMCID: PMC10063334 DOI: 10.1055/a-1724-7289] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 12/08/2021] [Indexed: 05/31/2023]
Abstract
BACKGROUND Since nonalcoholic fatty liver disease (NAFLD) has become the leading cause of liver disease in the Western world, clinicians need reliable noninvasive tools for the identification of NAFLD-associated fibrosis. Limited evidence on the performance of the novel shear wave elastography technique Elast-PQ (EPQ) in NAFLD is available. METHOD In this prospective, European multinational study we assessed the diagnostic accuracy of EPQ using vibration-controlled transient elastography (VCTE) as a reference standard. RESULTS Among 353 NAFLD patients, 332 (94.1%) fulfilled reliability criteria of VCTE and EPQ (defined by IQR/median ≤0.3; 41.3% female, mean age: 59 [IQR: 16.5], mean BMI: 29.0 (7.1)). 4/353 (1.1%) and 17/353 (4.8%) had unreliable VCTE and EPQ measurements, respectively. VCTE-based NAFLD fibrosis stages were F0/F1: 222(66.9%), F2: 41 (12.3%), F3: 30 (9.1%), F4: 39 (11.7%). We found a strong correlation (Pearson R=0.87; p<0.0001) and concordance (Lin's concordance correlation coefficient =0.792) of EPQ with VCTE. EPQ was able to identify NAFLD-fibrosis risk with the following EPQ cutoffs: ≥6.5 kPa for significant fibrosis (≥F2) (≥1.47 m/s; sensitivity: 78%; specificity: 95%; AUROC: 0.94), ≥6.9 kPa for advanced fibrosis (≥F3) (≥1.52 m/s; sens.: 88%, spec.: 89%; AUROC: 0.949), and ≥10.4 kPa for cirrhosis (F4) (≥1.86 m/s; sens.: 87%; spec.: 94%; AUROC: 0.949). CONCLUSION The point shear wave elastography technique EPQ shows excellent correlation to and concordance with VCTE. EPQ can reliably exclude NAFLD fibrosis <6.0 kPa (<1.41 m/s) and indicate a high risk of advanced fibrosis ≥10.4 kPa (≥1.86 m/s).
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Affiliation(s)
- David JM Bauer
- Vienna Hepatic Hemodynamic Lab, Medical University of Vienna, Vienna, Austria
- Division of Gastroenterology and Hepatology, Medical University of Vienna, Wien, Austria
| | - Vladimir Matic
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ruxandra Mare
- Division of Gastroenterology & Hepatology, Center for Advanced Research in Gastroenterology and Hepatology, University of Medicine and Pharmacy Victor Babes Timisoara, Timisoara, Romania
| | - Laura Maiocchi
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - David Chromy
- Vienna Hepatic Hemodynamic Lab, Medical University of Vienna, Vienna, Austria
- Division of Gastroenterology and Hepatology, Medical University of Vienna, Wien, Austria
| | - Theresa Müllner-Bucsics
- Vienna Hepatic Hemodynamic Lab, Medical University of Vienna, Vienna, Austria
- Division of Gastroenterology and Hepatology, Medical University of Vienna, Wien, Austria
| | - Mattias Mandorfer
- Vienna Hepatic Hemodynamic Lab, Medical University of Vienna, Vienna, Austria
- Division of Gastroenterology and Hepatology, Medical University of Vienna, Wien, Austria
| | | | - Ioan Sporea
- Department of Internal Medicine II,Division of Gastroenterology & Hepatology, Center for Advanced Research in Gastroenterology and Hepatology, University of Medicine and Pharmacy Victor Babes Timisoara, Timisoara, Romania
| | - Giovanna Ferraioli
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | | | - Thomas Reiberger
- Vienna Hepatic Hemodynamic Lab, Medical University of Vienna, Vienna, Austria
- Division of Gastroenterology and Hepatology, Medical University of Vienna, Wien, Austria
- Christian-Doppler Laboratory for Portal Hypertension and Liver Fibrosis, Medical University of Vienna, Wien, Austria
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