ACIST RXI - Adjust the Number of Heartbeats Used for Mean Pressure Calculation

Adjust the Waveform Settings
60 | ACIST RXi System User’s Guide 901700-001,01 2019-09 English
System Information and Settings
Adjust the Number of Heartbeats Used for Mean Pressure
Calculation
To change the number of heartbeats used to calculate the mean pressure,
press ACIST > Waveform Settings > Mean Pressure Calculation. e default
setting is 3 heartbeats.
In the case of intracoronary administration of the vasodilator, the default
setting of 3 heartbeats is recommended.
Note
This setting can aect the resting Pd/Pa or FFR value. For FFR, this is dependent on the
amount of time maximum hyperemia is maintained in an individual patient.
To change the number of heartbeats setting, press the radio button next to
the preferred number of heartbeats, then press OK. e system calculates the
mean pressure based on the adjusted setting. Press Cancel to exit without
making changes.