GE Vivid i, User Manual

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Measurement and Analysis
Vivid i User’s Manual
119
2378958-100 Rev. 02
The measurements
displayed on the 2D
image and the cor-
responding results
are numbered. 10. Repeat steps 5 through 8 to make additional area
measurements.
2D area measurement ratio
1. Generate the 2D image.
2. Press
FREEZE
to stop the cineloop.
3. Press
MEASURE
on the Control Panel.
4. Select Area ratio in the Measurement Menu (see
Figure 6-1).
5. Perform two area measurements as described in steps 5
through 8 in the above section.
See the Status bar
to get the next step
to perform.
The measurement results including the ratio (%) of the two
measured areas are displayed in the
Measurement result
table .
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.
3. Press
MEASURE
on the Control Panel.
4. Select Volume in the Measurement Menu (see Figure 6-1).
5. Trackball the cursor to the start point where a volume is to
be measured.