FujiFilm SonoSite SII User Manual Supplement page 32

In MV, position the caliper along the EF slope.
In AV, position the caliper at the end diastole.
4 Tap Save Calc to save the calculation.
5 To save a picture of the finished calculation, tap
6 Tap Back to exit the calculation.
To calculate Isovolumic Relaxation Time (IVRT)
1 On a frozen Doppler spectral trace, tap Calcs.
On the calculations menu, tap MV, and then IVRT. A vertical caliper appears.
2 Position the caliper at the aortic valve closure.
3 Tap . A second vertical caliper appears.
4 Position the second caliper at onset of mitral inflow.
5 Tap Save Calc to save the calculation.
6 To save a picture of the finished calculation, tap
7 Tap Back to exit the calculation.
To calculate Delta Pressure: Delta Time (dP:dT)
To perform the dP:dT measurements, the CW Doppler scale must include velocities of 300 cm/s or greater
on the negative side of the baseline.
1 On a frozen Doppler spectral trace, tap Calcs.
2 On the calculations menu, tap MV, and then dP:dT.
A horizontal dotted line with an active caliper appears at 100 cm/s.
3 Position the first caliper along the waveform at 100 cm/s.
4 Tap .
A second horizontal dotted line with an active caliper appears at 300 cm/s.
5 Position the second caliper along the waveform at 300 cm/s.Tap Save Calc to save the calculation.
6 To save a picture of the finished calculation, tap
7 Tap Back to exit the calculation.
To calculate Aortic Valve Area (AVA)
The AVA calculation requires a measurement in 2D and two measurements in Doppler. After the
measurements are saved, the result appears in the patient report.
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Measurements and calculations