Home › Clinical Tools › FLR Ratio

🔪 Future Liver Remnant Ratio (FLR / sTLV, Vauthey)

UsePlanning major hepatectomy and re-measuring after portal vein embolization.

Loading calculator…

SourceVauthey JN, et al. Liver Transpl 2002;8:233-240

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.

Methodology · worked example, guidelines & full notes
Clinical takeaway

sFLR = FLR / sTLV.

When to use

Planning major hepatectomy and re-measuring after portal vein embolization.

How it works

BSA = √(height × weight / 3600); sTLV = −794.41 + 1267.28 × BSA; sFLR = FLR / sTLV.

Key points

  • sFLR = FLR / sTLV.
  • Normal liver ≥20%.
  • After extensive chemotherapy ≥30%.
  • Cirrhosis ≥40%.

References

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

Future liver remnant volume (CT volumetry)420 mL
Height170 cm
Weight65 kg
Liver backgroundExtensive chemotherapy / steatosis

→sFLR29.5%

  • BSA (Mosteller)：1.75 m²
  • Standard total liver volume：1426 mL = −794.41 + 1267.28 × BSA
  • Threshold：≥30% (chemotherapy / steatosis)
Verification & sources · governance
FAQ

Frequently asked questions

What are the limits and cautions when using Future Liver Remnant Ratio (FLR / sTLV, Vauthey)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
Does Future Liver Remnant Ratio (FLR / sTLV, Vauthey) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is Future Liver Remnant Ratio (FLR / sTLV, Vauthey) calculated in practice? Can you show a worked example?
Inputs: Future liver remnant volume (CT volumetry) 420 mL, Height 170 cm, Weight 65 kg, Liver background Extensive chemotherapy / steatosis → Result: sFLR 29.5%（BSA (Mosteller): 1.75 m², Standard total liver volume: 1426 mL = −794.41 + 1267.28 × BSA, Threshold: ≥30% (chemotherapy / steatosis)）
Related tools

Other tools