5-138 Image Optimization
the magnetic generator and the patient for any circumstances after the freehand 3D cine is
captured. Otherwise, the registration display for freehand image and the ultrasound image is
affected.
5.17.10 Parameter Settings
The parameters of the Fusion Imaging are described below:
Nav System
Operation Tap [Tracking System] to enable or disable the function.
CT/MR/PET/freehand image and the ultrasound image build up the coordinate relation.
The sensor indicator becomes green (navigation signal state indicator).
Fusion Ratio
Adjust the display ratio that the ultrasound image registers with the
CT/MR/PET/freehand image.
Operation Rotate the knob beneath [Fusion Ratio] to set the ratio.
The adjusting range is -1 ~ 1 in increments of 0.1.
0~1 represents that the ultrasound image registers with the CT/MR/PET/freehand
image; the change of the fusion ratio appears on the right window side.
The larger the value is, the better the display effect becomes for the ultrasound
image registering with the CT/MR/PET/freehand image; and vice versa. 0 only
relates to CT/MR/PET/freehand image on the right window side and 1 only relates
to ultrasound image on the right window side.
-1~0 represents that the CT/MR/PET/freehand image registers with the ultrasound
image; the change of the fusion ratio appears on the left window side.
The larger the value is, the poorer the display effect becomes for the
CT/MR/PET/freehand image registering with the ultrasound image; vice versa. -1
only relates to CT/MR/PET/freehand image on the left window side and 0 only
relates to ultrasound image on the left window side.
Image Magnification
The lesion or tumor ultrasound and CT/MR/PET/freehand image becomes clearer and
easier to register via <Zoom> key.
Operation Rotate <Zoom> to zoom in or zoom out the image.
The parameter “Z” on the right side of the image refers to the magnification value. The
adjusting scale is: 0.8-2.0.
Toggling CT/MR/PET/Freehand Anatomical Plane
The Ultrasound System sets CT/MR/PET/freehand volume data to 3-dimensional
image automatically after importing CT/MR/PET/freehand volume data. There are
transverse plane, coronal plane, sagittal plane displaying from left to right at the
bottom of the screen.
It is available to toggle and register among three planes.
Operation
Tap [View Type] to select the CT/MR/PET/freehand anatomical planes (among the
sagittal plane, transverse plane, coronal plane).