17 - 76 Operator’s Manual
17 Probes and Biopsy
• When the target for biopsy is small, dispersion of the ultrasound beam may
lead to image deviate from the actual position. Pay attention to this. Image
deviation is shown as the figures below:
To avoid this problem, note points below:
– Do not rely only on the echo of the needle tip on the image. Pay careful
attention to the target object, which should shift slightly when the biopsy
needle comes into contact with it.
– Before you perform the biopsy, please evaluate the size of the object
and confirm if the biopsy can be carried out successfully.
• Refer to navigation device accompanied manual about installation, operation and disinfection
of navigation device. Contact navigation device manufacturer if necessary.
• During needle navigation guiding procedure, please keep the navigation device, ultrasound
system and the probe away from electromagnetic interference, such as: power filter, signal
indication, magnetic materials, cellphone and metal instruments. Otherwise, navigation may be
interfered.
• Frontal side of the magnetic navigator should directly face the lesion. Distance between the
magnetic navigator front part and the target should reaches 20-66cm within the scope of 30cm
from left to right, up to down. Otherwise, magnetic signal is unstable for navigation precisely.
• Check stability of magnetic navigator before conducting needle navigation.
A The biopsy needle appears to reach
the target object in the image
B Dispersion of the ultrasound beam
1 Needle 2 Target
3Probe 4Needle
5 Ultrasound beam 6 Target
A
1
2
3
4
5
6
B
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