Table 1.

LIVRA study QA programme for VCTE operator training certification

Exams	Guidelines	Training goals
1–25	Subjects: varied body types and ages, discrete subjects Parameter goals to work towards: IQR <30% of median, >60% of measurements deemed valid by device REQUIRED: 10 valid measurements obtained per participant	Get comfortable with positioning. Familiarise with Fibroscan screen and available tools; observe how age and abdominal fat affect Fibroscan acquisition. Work on consistently achieving valid assessments.
Scans are reviewed by QA team and operator receives written feedback report. Check-in call and additional in-person training optional.
26–50	Subjects: varied body types and ages, discrete subjects Parameters: REQUIRED: IQR <30% of median, >60% of measurements deemed valid by device, 10 valid measurements per participant	Focus on achieving valid assessments consistently. Use deletion to meet parameter requirements.
Scans are reviewed by QA team and operator receives written feedback report. Additional examinations and site visit may be required prior to certification.
Maintenance certification: Operator must perform at least 20 examinations per year. Ongoing written feedback provided for studies reviewed by QA team.

QA, quality assurance; VCTE, vibration controlled transient elastography.