---
title: "NV-Segment-CT — 132-Class CT Segmentation"
description: "Automatic and interactive segmentation of 132 anatomical structures in CT images with point-click refinement."
canonical: https://nvidia-medtech.github.io/models/nv-segment-ct.html
audience: [engineer, researcher]
last_updated: 2026-06-10
source: models/nv-segment-ct.html
---
# NV-Segment-CT

132-Class CT Segmentation

Commercial

Automatic and interactive segmentation of 132 anatomical structures in CT images with point-click refinement.

CT [HuggingFace](https://huggingface.co/nvidia/NV-Segment-CT) [GitHub](https://github.com/NVIDIA-Medtech/NV-Segment-CTMR) [Paper](https://arxiv.org/abs/2406.05285)

### Run it with an agent

Install the skill, then just ask your agent in plain language. `medagent.nv_segment_ct`

install skill Copy

```bash
npx skills add NVIDIA-Medtech/medical-AI-skills --skill nv-segment-ct
```

Try saying

“Segment spleen, liver, right kidney, and left kidney from my CT NIfTI volume at /data/case.nii.gz using NV-Segment-CT.”

“Run NV-Segment-CT on data/abdomen.nii.gz and give me the full label map with the structures it found.”

“Use NV-Segment-CT to segment the lungs and heart from my chest CT NIfTI and write the label map to runs/case/.”

[Skill on GitHub →](https://github.com/NVIDIA-Medtech/medical-AI-skills/tree/dev/skills/nv-segment-ct) [How agent skills work](https://agentskills.io)

### Finetune it with an agent

Install the skill, then just ask your agent in plain language. `medagent.nv_segment_ct_finetune`

install skill Copy

```bash
npx skills add NVIDIA-Medtech/medical-AI-skills --skill nv-segment-ct-finetune
```

Try saying

“I have an MSD-style CT segmentation dataset at /data/msd\_case. Do the shortest smoke-scale NV-Segment-CT finetune check first.”

“Finetune NV-Segment-CT VISTA3D on my labeled CT dataset at /data/liver\_ct using the single-GPU smoke recipe and report the before/after Dice.”

[Skill on GitHub →](https://github.com/NVIDIA-Medtech/medical-AI-skills/tree/dev/skills/nv-segment-ct-finetune) [How agent skills work](https://agentskills.io)

Engineering & research use only — not a medical device, not for diagnosis or clinical decision-making. Skills follow the open [Agent Skills spec](https://agentskills.io).