Future Liver Remnant Ratio (FLR / sTLV, Vauthey) — free guideline decision tool
Standardize the CT-measured future liver remnant to body size (Vauthey standard liver volume) and check it against pre-hepatectomy thresholds. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
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 |
|---|---|
| Height | 170 cm |
| Weight | 65 kg |
| Liver background | Extensive chemotherapy / steatosis |
→sFLR29.5%
- BSA (Mosteller)：1.75 m²
- Standard total liver volume：1426 mL = −794.41 + 1267.28 × BSA
- Threshold：≥30% (chemotherapy / steatosis)
Common questions
What is Future Liver Remnant Ratio (FLR / sTLV, Vauthey)?
Standardize the CT-measured future liver remnant to body size (Vauthey standard liver volume) and check it against pre-hepatectomy thresholds. Instant, browser-side.
How is Future Liver Remnant Ratio (FLR / sTLV, Vauthey) calculated? What is the core formula?
BSA = √(height × weight / 3600); sTLV = −794.41 + 1267.28 × BSA; sFLR = FLR / sTLV.
When is Future Liver Remnant Ratio (FLR / sTLV, Vauthey) used?
Planning major hepatectomy and re-measuring after portal vein embolization.
What are the key clinical points for Future Liver Remnant Ratio (FLR / sTLV, Vauthey)?
sFLR = FLR / sTLV. Normal liver ≥20%. After extensive chemotherapy ≥30%. Cirrhosis ≥40%.
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)）
Run Future Liver Remnant Ratio (FLR / sTLV, Vauthey) now
Standardize the CT-measured future liver remnant to body size (Vauthey standard liver volume) and check it against pre-hepatectomy thresholds. Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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