Table 1 Considerations when sharing non-invasive test results with patients for hepatic steatosis and fibrosis in MASLD

From: The importance of patient engagement in the multimodal treatment of MASLD

Hepatic steatosis

Test

Test type

Consideration

Ref.

Fatty liver index

Blood-based

>Differentiation of higher steatosis grades is inaccurate

>Indeterminate zone (30;60) difficult to interpret

>Not liver-specific

144,145,146

Ultrasound

Imaging-based

>High inter- and intra- observer variability, limited reproducibility

>Low accuracy for grading steatosis

147,148

VCTE - CAP

Imaging-based

>Differentiation of higher steatosis grades is inaccurate

>Moderate accuracy in patients with obesity

80,143,149,150

Hepatic fibrosis

Test

 

Consideration

Ref.

Fibrosis-4 score

Blood-based

>Inaccurate in people younger than 35 years

>Unspecific in patients older than 65 years

>Can be false positive when another cause of thrombocytopenia is present, such as HIV-infection

>Better at excluding than including advanced fibrosis

>Indeterminate zone (1.3;2.67) difficult to interpret

>Results can be impacted by liver congestion

>Not liver-specific

88,151,152,153

NAFLD fibrosis score

Blood-based

>Inaccurate in people younger than 35 years

>Unspecific in patients older than 65 years

>Better at excluding than including advanced fibrosis

>Indeterminate zone (-1.455;0.676) difficult to interpret

>Not liver-specific

151,154

Enhanced liver fibrosis score

Blood-based

>High sensitivity but limited specificity for excluding significant/advanced fibrosis at low cutoffs

>High negative predictive value

>Influenced by age, inflammation, and matrix turnover

155,156

VCTE - LSM

Imaging-based

>Results can be impacted by liver congestion, ascites, active hepatitis, food intake, biliary obstruction, and amyloidosis

>Results are less reliable in people with severe obesity

>Better at ruling out than ruling in cirrhosis

>Results obtained with the XL-probe are often lower than those obtained with the M-probe

>CAP values higher than 300 dB can overestimate LSM in case of low fibrosis stage

>Differentiating lower fibrosis stages is inaccurate

149,157,158,159

  1. CAP controlled attenuation parameter, LSM liver stiffness measurement, MASLD metabolic dysfunction-associated steatotic liver disease, VCTE vibration-controlled transient elastography.