FujiFilm SONOSITE X-PORTE, User Manual

Page: 161 / 366

Measurements and calculations 5-33
1 On a frozen 2D image, tap Calcs .
If this control is hidden, tapping More Controls displays it.
2 Do the following to measure from LVOT D and again to measure from RVOT D:
a From the Qp/Qs calculations list, select LVOT D or RVOT D .
b Position the calipers by dragging.
c Save the calculation: Tap under the measurement name.
3 On a frozen Doppler spectral trace, tap Calcs .
4 Do the following to measure from LVOT VTI and again to measure from RVOT VTI:
a From the Qp/Qs calculations list, select LVOT VTI or RVOT VTI .
b Select the starting position then lift your finger to start the trace.
c Using your finger, trace the waveform.
To make a correction, trace backward on the dotted line.
d Lift your finger to complete the trace.
e Save the calculation: Tap under the measurement name.
For information on the automatic trace tool, see “To measure automatically” on page 5-7.
To calculate Stroke Volume (SV) or Stroke Index (SI)
The SV and SI calculations require a measurement in 2D and a measurement in Doppler. SI also requires
Body Surface Area (BSA). After the measurements are saved, the result appears in the patient report.
1 (SI Only) Fill in the Height and Weight fields on the patient form. The BSA is calculated automatically (see
“Editing patient information” on page 4-31).
2 Measure LVOT diameter:
a On a frozen 2D image, tap Calcs .
If this control is hidden, tapping More Controls displays it.
b From the Cardiac Output (CO) calculation list, tap LVOT D .
c Position the calipers at LVOT by dragging.
d Save the calculation: Tap under the measurement name.
3 Measure LVOT VTI using one of the following methods:
a From the AV/LVOT/AI calculation list, select VTI under LVOT . Follow the trace instructions in “To
calculate Velocity Time Integral (VTI)” on page 5-29.