8. Move the needle down into the water bath until its ultrasound image is visible
on the video display.
9. Verify that the needle, as seen on the video display, falls along the guideline
along the entire depth of the guideline display. The biopsy guideline is intended
only to provide an indication of the expected path of the needle. Actual
position must be verified by identifying the echoes from the needle.
10. Remove the needle from the biopsy guide.
11. From the tip of the needle, measure a distance equal to the needle length
value noted in step 5. Mark this point on the needle.
12. Immerse the transducer no more than 6 mm (0.25 in) into the water bath.
13. Insert the needle into a guide channel that corresponds to the size of the
needle and the angle you selected. Continue sliding the needle in until the
mark on the needle aligns with the origin on the biopsy guide. (The origin is
the point at which the needle enters the biopsy guide.)
14. Move the biopsy depth cursor to the tip of the needle, as seen on the display,
and verify that the displayed depth is within 0.4 cm ( in) of the value noted in
step 5.
15. Confirm that the needle is visible along its expected path. If so, then the biopsy
guide is properly aligned.
Performing a Biopsy Procedure
WARNINGS
• Alignment verification should be performed at the selected depth prior to
the biopsy procedure to ensure that the biopsy guide and the needle have
been installed properly.
• Use a straight, new needle for each procedure.
• The biopsy guideline is intended only to provide an indication of the
expected path of the needle. Actual position must be verified by identifying
the echoes from the needle.
iU22 User Manual
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Biopsy Guides
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