Measurement and Analysis
132 Vivid i User’s Manual
2378958-100 Rev. 02
Acceleration, Acceleration time (AT)
1. Select Accel or AT.
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.
The acceleration and/or the acceleration time is displayed
in the Measurement result table.
Heart rate
Heart rate is calculated by selecting two identical points over
four heart cycles.
1. Select HR.
2. Position the caliper at a recognizable point in the first cycle
and press
SET to anchor the caliper.
3. Position the second caliper at the identical point in the
fourth cycle and press
SET to anchor the caliper and
complete the measurement.
The Heart rate is displayed in the Measurement result
table.
Peak systole (PS), End diastole (ED) and Mid diastole (MD)
1. Select PS, ED or MD.
2. Position the caliper at the corresponding measurement
point and press
SET to complete the measurement.
The selected measurement is displayed in the
Measurement result table.
Pulsatility index (PI)
With Auto trace on
1. Select PI.
2. Position the caliper at the beginning of the wave form and
press
SET to anchor the caliper.
3. Position the second caliper at end diastole and press
SET.
A trace is displayed between the two calipers and PS, MD,
ED, TAMAX and PI are displayed in the Measurement
result table.
With Manual trace on
1. Select PI.
2. Position the caliper at the beginning of the wave form and
press
SET to anchor the caliper.
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