FujiFilm SonoSite M-Turbo User Manual page 75

4 Press the key.
SELECT
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.
Save the calculation. (See "To save a
6
calculation" on page 51.)
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.
1 Measure from LVOT (2D):
a On a frozen 2D image, press the
b From the calculations menu, select LVOT D.
c Position the calipers. (See "Working with
calipers" on page 47.)
d Save the calculation. (See "To save a
calculation" on page 51.)
2 Measure from LVOT, and then measure from
AV (Doppler):
• For Vmax, see "To measure peak velocity"
on page 61. From the calculations menu,
select AV, select sample site, and then
select Vmax.
• For VTI, see "To calculate Velocity Time
Integral (VTI)" on page 61. From the
calculations menu, select AV, select sample
site, and then select VTI.
To calculate Qp/Qs
The Qp/Qs calculation requires two
measurements in 2D and two measurements in
Doppler. After the measurements are saved, the
result appears in the patient report.
1 On a frozen 2D image, press the
2 Do the following to measure from LVOT D
and again to measure from RVOT D:
a From the calculations menu, locate Qp/Qs
b
c
3 On a frozen Doppler spectral trace, press the
CALCS
4 Do the following to measure from LVOT VTI
and again to measure from RVOT VTI:
a From the calculations menu, select Qp/Qs
b Press the
c Using the touchpad, trace the waveform.
key.
CALCS
d Press the
e
For information on the automatic trace tool, see
"To trace automatically (Doppler)" on page 50.
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 information form. The BSA is
calculated automatically. (See "To create a
new patient information form" on page 40.)
2 Measure from LVOT (2D):
key. a On a frozen 2D image, press the
CALCS
b From the calculations menu, select LVOT D.
Chapter 4: Measurements and Calculations
and then select LVOT D or RVOT D.
Position the calipers. (See "Working with
calipers" on page 47.)
Save the calculation. (See "To save a
calculation" on page 51.)
key.
and then select LVOT VTI or RVOT VTI.
key to start the trace.
SELECT
To make a correction, select Undo
on‐screen, backtrack with the touchpad, or
press the key.
BACKSPACE
key to complete the trace.
SET
Save the calculation. (See "To save a
calculation" on page 51.)
key.
CALCS
63