FujiFilm SONOSITE X-PORTE, Руководство пользователя

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5-34 Measurements and calculations
b To measure LVOT VTI from the Cardiac Output (CO) calculation list:
i On a frozen Doppler spectral trace, tap Calcs .
If this control is hidden, tapping More Controls displays it.
ii From the CO calculation list, tap LVOT VTI . Follow the trace instructions in “To calculate Velocity
Time Integral (VTI)” on page 5-29.
To calculate Cardiac Output (CO) or Cardiac Index (CI)
The CO and CI calculations require Stroke Volume and Heart Rate 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 “Editing patient information” on page 4-31).
2 Calculate LVOT diameter:
a On a frozen 2D image, tap Calcs .
If this control is hidden, tapping More Controls displays it.
b From the CO calculation list, tap LVOT D .
c Position the calipers across the LVOT by dragging.
d To save the measurement, tap under the measurement name.
3 Measure LVOT VTI:
a On a frozen Doppler spectral trace, tap Calcs .
If this control is hidden, tapping More Controls displays it.
b From the CO calculation list, tap LVOT VTI . Follow the trace instructions in “To calculate Velocity Time
Integral (VTI)” on page 5-29.
4 Calculate HR:
a On a frozen Doppler image, tap Calcs .
If this control is hidden, tapping More Controls displays it.
b On the CO calculations list, tap HR .
c Drag the first vertical caliper to the peak of the heartbeat.
A second vertical caliper appears. The active caliper is highlighted green.
d Drag the second vertical caliper to the peak of the next heartbeat.
e To save the measurement, tap under the measurement name.