Calibration of Ultrasound and Tools
Demo 1: Pivot calibration for tracked tools (eg. stylus or needle) using SlicerIGT "Pivot Calibration" module
Objectives
- Find the transformation between the tool tip and the coordinates of the tracking sensor attached to it.
- This provides the location of the tool tip within the tracker coordinate system and allows integration of the tool in a VR/AR environment. Note that this process is only required if the tracked tool is NOT pre-calibrated.
Required equipment
- Surgical tool with a tracking sensor attached or built in.
- Eg. Magnetically tracked needle, stylus outfitted with an optical tracker etc.
- Tracking system (optical or magnetic).
- Eg. NDI Aurora magnetic tracking system and Polaris optical tracking system.
Where to find the module.
Find the source code for the module.
Figure 2: Accessing the pivot calibration module within the IGT extension.
How to use the module
Demo 2: SlicerIGT "US calibration" module
Objectives
- Find the transformation between the ultrasound image and the coordinates of the tracking sensor attached to the ultrasound probe.
- This enables placing the ultrasound image within the tracker coordinate system and integrating the image in a VR/AR environment.
Required equipment
- A pre-calibrated surgical tool with a tracking sensor attached or built in
- Eg. Magnetically tracked needle, stylus outfitted with a optical tracker etc.
- Tracking system (optical or magnetic)
- Eg. NDI Aurora magnetic tracking system and Polaris optical tracking system
- Ultrasound system
- Eg. SonixTouch by BK Medical
Required software and files
- PlusServer launcher
- Xml file
Where to find the module.
Find the source code on GitHub.