12 Probes and Biopsy
Operator’s Manual 12 - 57
12.4.2 Preset
eSpacial Navi Needle Menu
Enter the Needle menu, and controls are as shown in Table 12-6.
eSpacial Navi Settings Menu
Enter the eSpacial Navi Settings menu, and select the items to be displayed on the screen.
12.4.3 Preparation Before Needle Guidance
Before and during calibration, keep the probe away from the magnetic sources, such as metal
objects, electrical motors, switching power supplies, nerve stimulators and similar medical devices.
Perform the following procedure:
1. Scan the target tissue and adjust the image parameters.
2. Check the field strength to ensure that the filed strength indicator is . If the filed strength is
low, hold the probe and select [Calibrate] on the eSpacial Navi Needle menu. Do not move the
probe during the calibration.
3. Magnetize a needle cap.
a. Place an appropriate sterile needle cap (length: 3.5cm to 4.5cm, diameter < 7 mm, with
bottom closed) into the magnetizer.
4 Scale of guideline (5mm/scale)
Table 12-6 eSpacial Navi Needle settings
Item Description
Needle Select the desired needle from the drop-down list.
You can set the most frequently used needle to a favorite one.
Display Favourite Only After it is ticked, only the favorite needles are displayed on the needles
list.
Auto Optimize After it is ticked, the system adjusts focus position automatically
according to the position of the needle tip, and enable or disable
ExFOV function.
Indicator Colors Description
Green Low magnetic interference: appropriate for needle guidance.
Yellow Medium magnetic interference: be cautious for needle guidance.
Red High magnetic interference: do not perform needle guidance.
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