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Introduction
Introduction
About Eraser
Overview
Using
The traced information can then be viewed in the image data on the screen.
The traced volume can be shown in black, or in any other color so that it is visible as a dis-
tinct object within the patient image sets.
Eraser Use Cases
The
general (e.g., sinus cavity walls).
tures, rather than for a tumor located deep in tissue where brain shift can occur.
Once tissue has been resected, you can use
ject which overlays the patient's image set. This creates a visual impression of the patient's
changed anatomy following resection. If there is e.g., polyp tissue still visible in the image
set which is not covered by the
been successfully removed.
NOTE: The accuracy of the displayed Eraser object position depends on the navigation
accuracy in general. The use of the Eraser feature does not substitute intraoperative imag-
ing.
Eraser Instruments
The
bination with specially designed
tissue damage.
NOTE: You can also use any other calibrated instrument to create Eraser objects. For in-
struments without a diameter, such as the pointer, a spherical brush of 4 mm is used by the
software to trace the volume. For instruments with a given diameter, a cylindrical brush is
used with the same height and width as the instrument diameter.
170
Eraser
, you can trace surgically removed tissue volumes on the patient's anatomy.
Eraser
feature is useful for such cases as the resection of polyps, tumors, or tissue in
Situations that include anatomical structures that are subject to movement rel-
ative to the navigated rigid anatomy are not appropriate for use with the
feature.
The accuracy of
Eraser
ment tracking accuracies, and the quality of the scan data. This feature should
only be used to segment structures that can be reliably displayed and navigated
after considering these limitations.
Eraser
function can be used with the
Eraser
is specially designed for navigation on rigid struc-
Eraser
to trace the resected area to create an ob-
object, you may want to ensure that all polyps have
Eraser
objects depends on registration, calibration and instru-
Eraser
instrument (
Eraser
tips). The tips are spherical to avoid intraoperative
Software User Guide Rev. 1.0 Kolibri cranial/ENT Ver. 2.7
Eraser
Multiple Tip Pointer
in com-
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