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Overview of `workflows/catheter_navigation/` (fluorosim DRR, XPBD physics, vasculature digital twin).
1 of 25 test cases passed with the skill.
Tokens, turns and time describe resource use, not a dollar price.
Lift withheld: 2 comparable cases; this report requires 8.
A test case the skill fixed. Same model, same prompt, with and without the skill.
Which mode launches the real-time interactive fluoroscopy display featuring XPBD physical catheter wire propagation?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies interactive_viewport as the mode for live fluoroscopy with catheter physics | Missed | Passed |
The instructions your model reads when the skill loads.
Orient on the endovascular catheter navigation workflow before touching a specific stage: which CLI modes exist, how fluorosim / physics / digital-twin pieces fit together, and which per-stage skill to invoke next. This skill routes - it runs no pipeline stage itself.
These steps drive the i4h-workflows base code (the workflows/catheter_navigation/ tree). To reuse an existing checkout, set I4H_WORKFLOWS to its path (no clone happens). Otherwise this resolves the current repo, or clones to ~/i4h-workflows - pick that default without prompting. Run every command below from the resolved root:
# Resolve the i4h-workflows base code (provides workflows/catheter_navigation/).
ROOT="${I4H_WORKFLOWS:-$(git rev-parse --show-toplevel 2>/dev/null)}"
if [ ! -d "$ROOT/workflows/catheter_navigation" ]; then
ROOT="${I4H_WORKFLOWS:-$HOME/i4h-workflows}"
[ -d "$ROOT/workflows/catheter_navigation" ] || git clone https://github.com/isaac-for-healthcare/i4h-workflows "$ROOT"
fi
export I4H_WORKFLOWS="$ROOT"; cd "$ROOT"
workflows/catheter_navigation/metadata.json - lists ./i4h modes and their runtime commands.workflows/catheter_navigation/README.md - data download, digital-twin build, viewport controls, troubleshooting.Fallback when ./i4h modes catheter_navigation fails (setup incomplete):
| Mode | Purpose |
|---|---|
preprocess_ct | CT -> attenuation volume (mu_volume.npy) + optional HU cache |
segment_vessels | Arterial tree mask + centerline (vasculature digital twin) |
render_drr | Single DRR frame (synthetic phantom if no cache) |
interactive_viewport | Live fluoroscopy viewport with XPBD catheter physics |
test cases passed with the skill
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