Tutorial: Segmentation Workflow

This hands-on tutorial walks through a complete segmentation workflow using MouseMaster to streamline your mouse button mappings.

Prerequisites

  • 3D Slicer installed with MouseMaster extension

  • A multi-button mouse (this tutorial uses the Logitech MX Master 3S)

Step 1: Load Sample Data

Load MRHead from Sample Data module for segmentation practice.

Load Sample Data

Loaded volume: MRHead

Step 2: Open MouseMaster

Navigate to Modules > Utilities > MouseMaster.

Open MouseMaster

Step 3: Select Mouse

Choose your mouse model from the dropdown. We’ll use the Logitech MX Master 3S.

Select Mouse

Selected mouse: Logitech MX Master 3S

Step 4: Select Preset

Choose a preset configuration for your workflow.

Select Preset

Applied preset: Segmentation Workflow

Step 5: Review Button Mappings

Review the button mappings for your mouse. The MX Master 3S has 4 remappable buttons.

Review Button Mappings

Current button mappings:

  • Middle Click → Center view on crosshair position

  • Back → Select previous segment

  • Forward → Select next segment

  • Thumb Button → Activate Paint effect

Step 6: Enable MouseMaster

Click Enable Mouse Master to activate button remapping.

Enable MouseMaster

MouseMaster status: active

Step 7: Open Segment Editor

Open Segment Editor and create a segment to start painting.

Open Segment Editor

Step 8: Test Your Mappings

Paint on the slice, then press Back button to Undo. Press Forward to Redo.

Test Your Mappings

What’s Next?

Now that you’ve completed the basic workflow:

Tips

  • Use Back/Forward buttons for Undo/Redo in any module

  • Create module-specific bindings for Segment Editor effects

  • Export your presets to share with colleagues

This tutorial was auto-generated on 2026-01-29. Screenshots reflect the current UI.