Measurement and Analysis
122 Vivid i User’s Manual
2378958-100 Rev. 02
4. Select Ao/LA in the Measurement Menu.
5. Trackball the cursor along the time axis to the required point
to start measurement of Aorta root diameter.
See the Status bar
to get the next step
to perform.
6. Press SET.
The starting point for the measurement is anchored.
7. Trackball to the end point of the measurement.
The current value is
updated while mov-
ing the cursor.
8. Press SET.
The measurement end point is anchored and the value is
displayed in the Measurement result table.
A new free-moving cursor is displayed on the image, ready
for the next measurement.
9. Repeat steps 5, through 8 to measure Left Atrium.
The LA value is displayed in the Measurement result table.
The Ao/LA ratio is displayed in the Measurement result
table.
LV study
The LV study consists of measurements in fixed-time mode in
both systole and diastole of:
• Interventricular septum thickness (IVS)
• Left ventricular internal dimension (LVID)
• Left ventricular posterior wall thickness (LVPW)
The following parameters are also calculated:
• EDV (End diastole volume)
• ESV (End systole volume)
• SV (Stroke volume)
• EF (Ejection Fraction)
To perform LV study
1. Generate the M-Mode image.
2. Press
FREEZE to stop the cineloop.
3. Press
MEASURE on the Control Panel.
4. Select LV study in the Measurement Menu.
5. Trackball the cursor along the time axis to the required point
to start measurement of IVSd.
6. Press
SET. The starting point for the measurement is
anchored.
7. Trackball to the end point of the measurement.
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