Product 02 · Web app · Live

Liver Volumetry &
Resection Planning.

Automatic 8-segment Couinaud mapping, interactive cut-plane resection simulation, and instant FLR/GRWR calculation — from CT upload to a Safe/Caution surgical decision in minutes, not a day of manual planning.

Request demo → See screenshots
8Couinaud segments
6resection scenarios
100%HIPAA compliant
Resection planning tool — 3D liver mesh with tumor, 8 Couinaud segments, and an oblique cut plane
— What it does —

From CT volume to surgical decision.

Upload a CT series, get a fully segmented liver, a live resection simulator, and a scenario-by-scenario FLR/GRWR readout — no manual contouring, no spreadsheets.

8

Couinaud liver segments auto-contoured — plus tumor — from a single CT or MRI volume. Color-coded across axial, coronal, and sagittal MPR planes and a synchronized 3D mesh, ready for resection planning the moment the upload finishes.

Automatic Couinaud segmentation

All 8 functional liver segments plus tumor volume, auto-contoured in one pass — toggle any segment on or off, isolate it in the 3D mesh, or inspect it slice-by-slice in fill or outline mode.

✓ 22-label segmentation, 2,400+ mL volumes computed automatically

Interactive resection planning

Pick an orientation and slide to the level, or drag handles for a fully oblique cut — the whole cross-section at that plane resects together. Depth min/max controls how far the cut extends on either side.

✓ Plane mode or free 3-D point mode, with a live preview before you apply

Automated FLR & GRWR

Enter patient weight, height, and liver condition — normal, cirrhotic, or steatotic — and the standard liver volume (Urata formula), remnant volume, FLR%, FLR/SLV, and GRWR% are calculated instantly against clinical safety thresholds.

✓ Min. 20% FLR · 0.8–4% GRWR acceptable range

HIPAA-first, on-premise

Runs entirely on your network via Docker. Patient imaging data and PHI never leave your infrastructure. Full audit trail and role-based access included.

✓ Private HIPAA-compliant cloud also available with BAA
— Six scenarios, one segmentation —

Every standard hepatectomy, modeled instantly.

The same 8-segment map drives six standard resection and transplant scenarios — each benchmarked against FLR and GRWR safety thresholds and flagged Safe or Caution.

Scenario Graft segments FLR % GRWR % Status
Right HepatectomyRight lobe graft V, VI, VII, VIII 33.7% 2.45% ✓ Safe
Left HepatectomyLeft lobe graft II, III, IV 70.9% 1.07% ✓ Safe
Extended Right HepatectomyRight trisectionectomy IV, V, VI, VII, VIII 15.8% 3.11% ⚠ Caution
Extended Left HepatectomyLeft trisectionectomy I, II, III, IV, V, VIII 27.7% 2.67% ✓ Safe
Left Lateral SectionectomyPaediatric split graft II, III 88.9% 0.41% ⚠ Caution
Right Posterior SectionectomyRight posterior section graft VI, VII 72.3% 1.02% ✓ Safe
FLR = Future Liver Remnant · SLV = Standard Liver Volume (Urata formula) · GRWR = Graft-to-Recipient Weight Ratio · Minimum FLR 20% (normal liver) · Acceptable GRWR 0.8–4%
— Inside Liver Volumetry —

See the workflow for yourself.

Real screenshots from the platform — from synchronized MPR segmentation through 3D resection planning to the printable FLR/GRWR report.

FULL WORKSPACE · MPR + 3D · TUMOR & SEGMENT 1 Full liver workspace — axial, coronal, sagittal MPR and synchronized 3D volume render with tumor and segment 1 highlighted

Complete liver workspace

Axial, coronal, sagittal MPR views plus a synchronized 3D CT volume render — all generated in a single automated pass, tumor and segment overlaid together.
MPR · ALL 8 COUINAUD SEGMENTS · FILL MODE Axial, coronal and sagittal views showing all 8 Couinaud liver segments in color-coded fill mode

Full 8-segment liver mapping

Every Couinaud segment color-coded and synchronized across all three MPR planes at once.
3D MESH · SEGMENT ISOLATION 3D mesh viewer isolating the tumor and a single liver segment from the full Couinaud segmentation

Isolate and inspect any segment

Toggle individual segments on or off in the 3D mesh — tumor and a single target segment shown alone for surgical review.
CT VOLUME · CLIP RENDER Volumetric CT render clipped to show tumor and liver relative to the skeleton

Volumetric clip render

Bone-window volume rendering with an adjustable clip plane — see the tumor and liver in full anatomical context.
CLINICAL REPORT · FLR & GRWR Liver volumetry report listing six resection and transplant scenarios with FLR, FLR/SLV, GRWR and Safe/Caution status

Six-scenario FLR/GRWR report

Graft volume, graft weight, remnant volume, FLR%, FLR/SLV and GRWR% for every standard scenario — auto-calculated and printable to PDF.
RESECTION PLANNING · LIVE CUT PREVIEW Resection planning tool with an oblique cut plane through the liver, tumor and one Couinaud segment highlighted

Plan the cut before you commit

Drag the plane handles for an oblique cut and preview exactly which tissue resects — before applying anything.
— FAQ —

Common questions.

What is FLR and why does it matter?
FLR (Future Liver Remnant) is the volume of liver left after a planned resection, expressed as a percentage of total functional liver volume. A remnant below about 20% in a normal liver (higher thresholds for cirrhotic or steatotic livers) carries a materially higher risk of post-hepatectomy liver failure, so FLR is calculated automatically for every scenario and flagged Safe or Caution.
Which resection and transplant scenarios does it model?
Six standard scenarios are auto-modeled from the same segmentation: right hepatectomy, left hepatectomy, extended right hepatectomy, extended left hepatectomy, left lateral sectionectomy, and right posterior sectionectomy — each with graft volume, graft weight, remnant volume, FLR%, FLR/SLV, and GRWR%.
How does interactive resection planning work?
Pick an orientation — axial, coronal, or sagittal — and slide to the level, or drag handles for a fully oblique cut. Depth min/max controls how far the cut extends behind and beyond the plane. The cross-section preview computes live before you apply the resection.
Where does our imaging data live?
On your network. Liver Volumetry runs entirely on-premise via Docker, so CT/MRI data and PHI never leave your infrastructure. A HIPAA-compliant private cloud with BAA is also available.
— Ready when you are —

See Liver Volumetry on your scans.

15-minute demo on your own CT data. We'll show you the full pipeline from segmentation to resection planning to the FLR/GRWR report — no sales pressure, just the team that built it.

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