Measurement and Analysis
Vivid i User’s Manual 133
2378958-100 Rev. 02
3. Using the trackball, draw the trace to the end diastole and
press
SET.
The trace is displayed and PS, MD, ED, TAMAX and PI are
displayed in the Measurement result table.
Peak systole/End diastole (PS/ED) and End diastole/Peak
systole (ED/PS) ratio
1. Select PS/ED or ED/PS.
2. Position the caliper at Peak systole or End systole and
press
SET to anchor the caliper.
3. Position the second caliper at End diastole or Peak systole
and press
SET to anchor the caliper and complete the
measurement.
The Peak systole, End diastole and PS/ED or ED/PS ratio
are displayed in the Measurement result table.
Resistive index (RI)
1. Select RI.
2. Position the caliper at Peak systole and press
SET to anchor
the caliper.
3. Position the second caliper at end diastole and press
SET.
The Peak systole, End diastole and RI are displayed in the
Measurement result table.
TAMAX/TAMEAN/Volume Flow
With Auto trace on
1. Select TAMAX, TAMEAN or Volume Flow.
2. Position the caliper at the start point and press
SET to
anchor the caliper.
3. Position the second caliper at the end point and press
SET
to anchor the caliper and complete the measurement.
A trace is displayed between the two calipers and
corresponding measurements are displayed in the
Measurement result table.
With Manual trace on
1. Select TAMAX, TAMEAN or Volume Flow.
2. Position the caliper at the start point and press
SET to
anchor the caliper.
3. Using the trackball, draw the trace to the end point and
press
SET.