GE Vivid S5 - Page 275

Measurement and Analysis
Vivid S5/Vivid S6 User Manual 257
R2424458-100 Rev. 2
Editing 2D Area measurements
1. Trackball the cursor to the anchor point of the area
measurement to modify.
2. Press
SET twice (Double-click) to select the anchor point.
The selected marker turns green and is unanchored.
3. With the Trackball, reposition the marker.
4. Press the
SET to anchor.
2D Volume measurements
The measurements described in this section enable volume
measurement in a defined zone. The measurements tool
generates results by two methods:
For measurement
formulae, refer to
the Reference
Manual.
• Method of Disk (displayed as Vmod in the Measurement
result table), known as Simpson's method.
• Area/Length method (displayed as Va-l in the
Measurement result table).
To perform a volume measurement:
1. Generate the 2D image.
2. Press
FREEZE to stop the cineloop.
Alternative: Press
CALIPER and
VOLUME assignable.
3. Press MEASURE on the Control Panel.
4. Select Volume in the Measurement Menu (see Figure 7-1).
5. Trackball the cursor to the start point where a volume is to
be measured.
See the Status bar
to get the next step
to perform.
6. Press SET to anchor the start point of the measurement.
7. Trackball the cursor to draw the length. Use the trackball to
outline the area of interest.
8. Press
SET to anchor the second point. A third caliper will
appear, marking the length of the ROI.
The measurement
display color on the
2D image changes
from green to blue
after completion of
the measurement.
9. If required, drag the cursor with the Trackball to modify the
length marker.
The current area, circumference and Area/Length Volume
(Va-l) values are displayed in the Measurement result table
(see Figure 7-1) and are instantaneously updated when
moving the cursor.
10. Press
SET to complete the measurement.
The measurement results including Vmod (Simpson) are
displayed in the Measurement result table (see
Figure 7-1).