i4h Catheter Navigation - Interactive Viewport

Purpose

Launch the interactive fluoroscopy viewport with real-time XPBD catheter physics, DSA, C-arm presets, and centerline-guided insertion. Requires a digital twin cache from [[i4h-catheter-navigation-digital-twin]].

Base Code

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"

Basics