Unexpected data loss
Patient exam calculations on ultrasound workflows can be lost without warning or indication if certain
settings change prior to ending any current (open) studies. See the following caution:
Caution
Changes made to any of the following settings will cause analysis values in the
current (open) study to be cleared. These settings should not be changed before
ending any open study on the system.
Date and time
OB tables or custom measurements
Cardiac TDI labels
IMT labels
Doppler units
Measurements
To calculate Stroke Volume (SV) or Stroke Index (SI)
1 Fill in the Height and Weight fields on the patient information form. The BSA is calculated automatically.
(SI only.)
2 Measure from LVOT (2D).
a On a frozen 2D image, press the calcs key.
b From the 2D main menu, select AO/LA.
c From the Calculations menu, select LVOT D.
d Position the calipers.
e Save the calculation.
3 Measure from LVOT (Doppler).
a On a frozen Doppler image, press the calcs key.
b From the Calculations menu, select AV, and then select LVOT VTI.
c Position the calipers.
d Save 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.
Unexpected data loss
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