GE LOGIQ A100, Technical Publication

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Biopsy Procedures
287
LOGIQ
t α
100 User Manual
2211157–100 Rev 0
Biopsy Procedure (cont’d)
NOTE: Press the MEASUREMENT key once while the
guidelines are present to display the integrated biopsy
depth cursor and center line. Use the TRACKBALL to
measure the needle length. Needle length is from the top
of needle barrel to the target.
2
1
1 Needle Length
2 Target
Illustration 56
The needle may vary from the center line or guidezone
for various reasons:
S
Needle barrel to needle clearance or strength.
S
Bracket manufacturing tolerance.
S
Needle deflection due to tissue resistance.
S
Needle size chosen. Thinner needles may deflect more.
S
Wrong needle guide type selection (using Ctrl N key).
The display should be carefully monitored during a
biopsy for any needle deviation from the center line or
guidezone.
NOTE: The acceptable needle deviation is between
2 mm and 4 mm. If the deviation is greater than this, call
Service.
.
CAUTION
.