Transient Versus Two-Dimensional Shear-Wave Elastography in a Multistep Strategy to Detect Advanced Fibrosis in NAFLD.
Journal
Hepatology (Baltimore, Md.)
ISSN: 1527-3350
Titre abrégé: Hepatology
Pays: United States
ID NLM: 8302946
Informations de publication
Date de publication:
06 2021
06 2021
Historique:
revised:
28
10
2020
received:
07
07
2020
accepted:
30
10
2020
pubmed:
26
11
2020
medline:
31
12
2021
entrez:
25
11
2020
Statut:
ppublish
Résumé
The combination of laboratory and elastography tests allows the accurate diagnosis of advanced liver fibrosis in patients with NAFLD. In this study, we compared the diagnostic performances of a two-step strategy (laboratory tests and vibration-controlled transient elastography [VCTE] or two-dimensional shear-wave elastography with SuperSonic Imagine [2D-SWE-SSI]) and the added value of a three-step strategy (laboratory tests and two elastography methods). From a prospective registry, we retrospectively selected 577 consecutive patients with suspicion of NAFLD who underwent laboratory tests to calculate the Fibrosis-4 (FIB-4) score, liver stiffness evaluation by VCTE (M and XL probes) and 2D-SWE-SSI, and liver biopsy. The diagnostic performances and need for liver biopsy in unclassified patients for the diagnosis of advanced fibrosis (F ≥ 3) in multistep strategies were compared. The area under the curve of FIB-4, VCTE, and 2D-SWE-SSI was 0.74, 0.82, and 0.88, respectively. Using the same thresholds, the FIB-4/2D-SWE-SSI and FIB-4/VCTE diagnostic performances were comparable (sensitivity, 71.4% and 66%; specificity, 91.4% and 91.5%; and accuracy, 83.7% and 81.4%; all P = not significant). Conversely, more patients required liver biopsy after 2D-SWE-SSI (24.6% versus 15.3%, P < 0.001). Performing a second elastography technique in patients with unreliable or gray zone (between 8 and 10 kPa) results greatly decreased the need for liver biopsy (42/577, 7.3%). The diagnostic performances (accuracy, sensitivity, and specificity) of FIB-4/2D-SWE-SSI/VCTE and FIB-4/VCTE/2D-SWE-SSI were comparable (81.1%, 71.5%, and 87.9% versus 81.3%, 69.7%, and 89.5%, respectively; all P = not significant). Using the same cutoff values, 2D-SWE-SSI is as accurate as VCTE for advanced liver fibrosis diagnosis in NAFLD. The three-step strategy in selected patients strongly decreased the need for liver biopsy while maintaining excellent accuracy.
Sections du résumé
BACKGROUND AND AIMS
The combination of laboratory and elastography tests allows the accurate diagnosis of advanced liver fibrosis in patients with NAFLD. In this study, we compared the diagnostic performances of a two-step strategy (laboratory tests and vibration-controlled transient elastography [VCTE] or two-dimensional shear-wave elastography with SuperSonic Imagine [2D-SWE-SSI]) and the added value of a three-step strategy (laboratory tests and two elastography methods).
APPROACH AND RESULTS
From a prospective registry, we retrospectively selected 577 consecutive patients with suspicion of NAFLD who underwent laboratory tests to calculate the Fibrosis-4 (FIB-4) score, liver stiffness evaluation by VCTE (M and XL probes) and 2D-SWE-SSI, and liver biopsy. The diagnostic performances and need for liver biopsy in unclassified patients for the diagnosis of advanced fibrosis (F ≥ 3) in multistep strategies were compared. The area under the curve of FIB-4, VCTE, and 2D-SWE-SSI was 0.74, 0.82, and 0.88, respectively. Using the same thresholds, the FIB-4/2D-SWE-SSI and FIB-4/VCTE diagnostic performances were comparable (sensitivity, 71.4% and 66%; specificity, 91.4% and 91.5%; and accuracy, 83.7% and 81.4%; all P = not significant). Conversely, more patients required liver biopsy after 2D-SWE-SSI (24.6% versus 15.3%, P < 0.001). Performing a second elastography technique in patients with unreliable or gray zone (between 8 and 10 kPa) results greatly decreased the need for liver biopsy (42/577, 7.3%). The diagnostic performances (accuracy, sensitivity, and specificity) of FIB-4/2D-SWE-SSI/VCTE and FIB-4/VCTE/2D-SWE-SSI were comparable (81.1%, 71.5%, and 87.9% versus 81.3%, 69.7%, and 89.5%, respectively; all P = not significant).
CONCLUSIONS
Using the same cutoff values, 2D-SWE-SSI is as accurate as VCTE for advanced liver fibrosis diagnosis in NAFLD. The three-step strategy in selected patients strongly decreased the need for liver biopsy while maintaining excellent accuracy.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2196-2205Informations de copyright
© 2020 by the American Association for the Study of Liver Diseases.
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