Probes and Biopsy 13-33
13.2.4 Biopsy Menu
Press <Biopsy> to show the biopsy menu.
Select biopsy bracket angle
If the needle-guided bracket supports more than one biopsy angle, you can select the
angle from the drop-down list.
Select Dot size
Move the cursor onto [Dot Size], press <Set> to select the dot size among Small, Medium
and Big.
Tips:
The guide line is a dot line which consists of two kinds of dots, the distance between
two dots is depth dependent. Move the cursor onto the big dot, a numeral, which
represents the biopsy depth, is displayed.
The biopsy guidezone adjusts along with image adjustments, such as image
inversion/rotations, zoom and depth changes.
When the imaging depth and area are changed, the guide line will be adjusted.
Display or hide the guide line
Set [Biopsy Kit] on the menu to “Off” to hide the guide line.
Or, press <Biopsy> on the control panel to display or hide the guide line.
In B mode image menu, you can also display, hide or select the needle-guide bracket via
[Biopsy Kit] item.
13.2.5 iNeedle (Needle Visualization Enhancement )
In the course of biopsy, the metal needle attached to the probe is punctured into the tissue
with a certain angle; because of the needle acoustic impedance, the ultrasonic beam cannot
penetrate the metal needle, a reflecting boundary is formed. As in Figure 1, if the deflection
angle is very large, the needle display is not clear.
In the condition of deflected ultrasonic transmission, the beam direction is perpendicular to
the needle direction, and the reflection direction will be the same with the needle, as shown in
Figure 2, when the needle display in the ultrasound image is very clear. The system provides
an additional deflection transmission that is approximately perpendicular to the metal needle,
as the normal transmission (perpendicular to the transducer surface) is contained as well. And
the deflection angel can be chosen by users.
iNeedle is an option. Only the linear probe supports the iNeedle.
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