Acessa
®
ProVu System User’s Guide
PL-01-0040
CO 20-131 Revision: C
17
•
Position lines:
On the 3D view, if
the trajectory is “in front of” the
ultrasound plane, yellow lines will
appear. If the trajectory is
“behind” the ultrasound plane,
blue lines will appear. The spacing
of these lines does not represent
any specific distance or
measurement.
•
Proximity Meter:
The meter in the
center of the screen shows the
location of the Handpiece tip
relative to the ultrasound plane
and is most useful when
approaching the target with the
Handpiece tip in the plane of the
ultrasound. If the tip is in front of
the plane, yellow bar lines will be
displayed on the meter. If the tip is behind the plane, blue bar lines will be displayed. When the tip is “on plane” with
the ultrasound image, a green bar line in the center of the meter will be displayed. The spacing of these bar lines does
not represent any specific distance and measurements should not be taken using them. If the Handpiece is inserted out
of plane, do not use the meter, reference the 2D display.
•
Handpiece-ultrasound Target Zone
The software provides a prediction of the Handpiece’s path and its projected
intersection point with the ultrasound scan (target zone), so the user can orient the Handpiece to the target fibroid
before inserting it. It is drawn in both the 2D and 3D views as a purple obround-shaped indicator (target zone),
superimposed over the ultrasound scan plane. The size of the obround changes with the angle of the Handpiece to the
ultrasound scan plane; when the Handpiece is perpendicular to the scan plane, the obround is a circle, and as the angle
decreases toward parallel, the obround is drawn as two lines capped with semi-circles at the ends. The Handpiece
trajectory hash marks are displayed in both the 2D and 3D views. When the hash marks are displayed as red and yellow
the Handpiece trajectory is distal to the ultrasound scan plane and when green hash marks are displayed the Handpiece
is within the ultrasound plane. The double green hash mark is representative of the Handpiece tip.
