5-124 Image Optimization
No. Image Description
6 Indicator
Four indicators (1
st
indicator is on positioning (probe) sensor and 2
nd
indicator
is on motion (abdomen) sensor. 3
rd
indicator is on Needle Navigation Guiding
sensor. 4
th
indicator are reserved functions.)
Check the indicator becomes green in use.
Different indicator color:
Blinks green: excellent.
Blinks yellow: mediocre.
Blinks red: poor.
Stays grey: no signal activated. (Magnetic navigation is not enabled.)
Note: if the signal of the sensor becomes poor, check the connections of the
magnetic devices. Reset the distance/orientation among the magnetic
generator, sensors and the patient. Exclude the interference from the metal
devices (ward beds made of metal materials) or the electromagnetic devices.
5.17.4 Basic Procedures
1. Select a proper probe and a correct exam. Enter real-time B/Color/Power/Contrast mode (non-
cardiac Contrast Imaging mode).
2. Get magnetic devices prepared. Connect the magnetic devices (see also Chapter 5.17.2 Magnetic
Navigator). Power on the magnetic navigator.
3. Activating the magnetic positioning:
a) Tap [Fusion] on the touch screen or user-defined key to enter Fusion Imaging mode (see also
Chapter 12 Setup for key preset operations). Tap [Tracking System] on the touch screen. The
magnetic navigation positioning is activated when the soft key becomes highlighted (it is
usually activated by default).
b) Checking indicator
The Fusion Imaging works when the indicator becomes green.
See also Chapter 5.17.2 Magnetic Navigator (table) for indicator descriptions.
4. Acquire/import CT/MR/PET/freehand volume data. See also Chapter 5.17.5 Acquiring/Importing
Volume Data.
You can load PET volume data and CT volume data, and tap [Multi Data Regi] to register the PET
image with CT image. Tap [Mark on Multimodality] to make marks on CT and PET images. Tap
[Exit]. Then tap [Multidata] to select “PET-CT”. The PET-CT volume data will be used in later
registering with ultrasound image.
The Ultrasound System sets CT/MR/PET/freehand volume data to 3-dimensional display
automatically. One of anatomical planes (2-dimensional image) appears on the screen.
Note: After freehand volume data is imported or acquired, the system registers freehand
volume data with the ultrasound plane automatically. Do not move the magnetic
generator and the patient for any circumstances after the freehand volume data is
imported or acquired. Otherwise, the registration display for freehand image and the
ultrasound image is affected.
5. The brightness and the grey level of loaded data can be completed via Window Width and Window
Level. Set Window W and Window L. See also Chapter 5.17.10 Parameter Setting.
6. Obtain an optimum plane as the registration plane from CT/MR/PET image (registered with the
ultrasound plane). (For freehand volume data, skip steps 6-8.)
It is suggested that the plane concentrated with blood vessels, organs, tissue margins, lesions is
optimum for registering.
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