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Measurements and calculations
5-7
2
Drag the caliper to the beginning of the desired waveform.
After lifting your finger from the screen, a pencil icon appears, indicating that the start location is set and
you can begin your trace.
3
Drag the caliper to trace the waveform.
To make a correction, trace backward on the dotted line.
4
To complete the measurement, remove your finger from the screen.
The trace closes automatically and the measurement results appear.
To measure automatically
After measuring automatically, confirm that the system-generated boundary is correct. If you are not
satisfied with the trace, obtain a high-quality Doppler spectral trace image, or trace manually.
1
On a frozen Doppler spectral trace, tap
Auto Measure
.
If this control is hidden, tapping
More Controls
displays it.
A vertical caliper appears.
2
Drag the caliper to the beginning of the waveform.
If calipers are not positioned correctly, the calculation result is inaccurate.
3
Drag the second caliper to the end of the waveform and lift your finger.
The measurement results appear.
To measure slope, VMax, Decel, and PHT
The
Slope
control can only be used in the cardiac exam type.
1
On a frozen Doppler spectral trace, tap
Slope
.
A vertical caliper appears.
If this control is hidden, tapping
More Controls
displays it.
2
Drag the caliper where desired.
3
Drag the second caliper where desired.
The absolute slope between the calipers is calculated. If the absolute velocity of the earlier caliper is
greater than that of the later caliper (and they are on the same side of the baseline), the deceleration time
(Decel) and Pressure Half Time (PHT) are calculated.
Note
Even after completing the trace, you can still adjust the measurement by dragging
the cursor. Drag the cursor backward to erase your trace or forward to extend it.
Summary of Contents for SONOSITE X-PORTE
Page 1: ...USER GUIDE ...
Page 75: ...Setting up the system 3 39 ...
Page 76: ...3 40 Setting up the system ...
Page 128: ...4 52 Imaging ...
Page 186: ...5 58 Measurements and calculations ...
Page 210: ...6 24 Measurement references ...
Page 234: ...8 16 Cleaning and disinfecting ...
Page 262: ...9 28 Safety ...
Page 334: ...10 72 Acoustic output ...
Page 364: ...B 14 Index printing 5 56 zoom 4 23 ...
Page 365: ......
Page 366: ...P14645 05 P14645 05 ...