Brainlab Kolibri cranial - How to Verify Accuracy Using Advanced Features

Software User Guide Rev. 1.0 Kolibri cranial/ENT Ver. 2.7 97
Surface Matching Registration
How to Verify Accuracy using Advanced Features
Step 1: Check
Alignment
Step 2: Check
Color-Coding of
Points
Step 3: Check
Distance of Points
Steps
1. Check overall accuracy by holding the pointer to known anatomical landmarks.
Verify that position displayed on screen corresponds with the actual position on
the patient’s skull.
2. • If the alignment is acceptable, continue to step 2.
• If the alignment is incorrect, press
Modify and repeat surface matching regis-
tration.
Steps
1. Press
Overview to show the 3D view.
2. In the 3D view, check individual points to determine whether color-coding is rea-
sonable based on where you acquired the points during registration.
3. • If the color-coding is reasonable, continue to step 3.
• If you suspect that the color-coding does not correctly correspond to your reg-
istration, press
Modify and acquire additional points.
Steps
1. In either the ACS (axial, coronal, sagittal) or overview display, hold the pointer
to various points on the patient’s skull and check the displayed deviation (dis-
tance to surface) in the view based on the current pointer position.
2. • If the displayed distances are acceptable, continue to step 4.
• If the displayed distances indicate unacceptable inaccuracies, you can press
Modify and acquire additional points.