FujiFilm SonoSite Edge II User Manual page 112

b From the calculations menu select Ao/LA then LVOT D.
c Position the calipers.
d Save the calculation as described in
3 Measure from LVOT (Doppler). Refer to
From the calculations menu, select AV and then select LVOT VTI.
For information on the automatic trace tool, refer to
To calculate Cardiac Output (CO) or Cardiac Index (CI)
The CO and CI calculations require Stroke Volume (SV) and Heart Rate (HR) calculations. CI also requires
Body Surface Area (BSA). After the measurements are saved, the result appears in the patient report.
1 (CI Only) Fill in the Height and Weight fields on the patient form. The BSA is calculated automatically
(see "To create a new patient information form"
2 Calculate SV as described in
3 Calculate HR as described in
To calculate Cardiac Output (CO) automatically
WARNINGS
Make sure that the flow rate is 1 L/min or greater. The system can maintain accuracy of the
measurements only if the flow rate is 1 L/min or greater.
1 Measure from LVOT:
a On a frozen 2D image, press the CALCS key.
b From the CO calculations menu, select LVOT D.
c Using the touchpad, position the calipers.
d Save the calculation as described in
2 Trace automatically in Doppler. The automatic trace tool always measures the peak regardless of the Live
Trace setting in Presets setup.
a Display the Doppler spectral trace (waveform).
5-28
"To save a calculation"
"To calculate Velocity Time Integral (VTI)"
"To calculate Stroke Volume (SV) or Stroke Index (SI)"
"To measure Heart Rate in Doppler"
To avoid incorrect calculation results, make sure that the Doppler signal does not
alias.
To avoid an incorrect diagnosis:
Do not use automatic Cardiac Output calculations as the sole diagnostic criteria.
Use them only in conjunction with other clinical information and patient history.
Do not use automatic Cardiac Output calculations in neonatal patients.
To avoid inaccurate velocity measurements if you use PW Doppler, make sure
that Angle Correction is set to zero.
"To save a calculation"
on page 5-8.
"To trace automatically in Doppler"
on page 4-25).
on page 5-23.
on page 5-8.
on page 5-25.
on page 5-6.
on page 5-27.
Measurements and Calculations