2.
Position the first point of the first distance to measure and press
Set
.
3.
Position the second point of the first distance to measure and press
Set
.
4.
Repeat step 2 and 3 for the second and third distance to measure. As soon as the last
point is fixed with
Set
the measurement is finished and volume is automatically
calculated.
10.2.4 Generic Angle Measurements
Note
To re-adjust a previously set measure point, press the upper trackball key (Change) before
completing a measurement. This will alternate the control from one cursor to the other. This
applies to all measurements listed below.
Angle 3Point
To measure the angle between two lines:
1.
Select
Angle 3Point
. The measurement cursor appears.
2.
Position the first point with the trackball and press
Set
.
3.
Position the second point with the trackball and press
Set
. The line connecting the two
points is show.
4.
Position the third point with the trackball and press
Set
. The second line is shown and
the angle measured.
Angle2Line
To measure the angle of two lines crossing each other:
1.
Select
Angle 2Line
. The measurement cursor appears.
2.
Enter the first line by defining starting and end point of it.
3.
Enter the second line by defining starting and end point of it. The angle is measured.
10.2.5 Generic Vessel Measurements
Note
To re-adjust a previously set measure point, press the upper trackball key (Change) before
completing a measurement. This will alternate the control from one cursor to the other. This
applies to all measurements listed below.
Vessel Area
To measure the vessel area:
1.
Select
Vessel Area
. The measurement cursor appears.
2.
Position the starting point with the trackball and press
Set
.
3.
Position the end point with the trackball and press
Set
again.
4.
Adjust the width of the ellipse if necessary and press
Set
.
Stenosis Area
To calculate the stenosis ratio between two areas:
1.
Select
Stenosis Area
. The measurement cursor appears.
2.
Position the first point of the long axis with the trackball and press
Set
.
3.
Position the second point of the long axis and press
Set
.
4.
Adjust the length of the short axis with the trackball and fix it with
Set
.
5.
Repeat steps 2-4 to create a second area. Stenosis Area % is automatically calculated
and displayed.
Measurements and Calculations
10-8
Voluson™ SWIFT / Voluson SWIFT+ Instructions For Use
5831612-100 Revision 4
Содержание Voluson Swift
Страница 343: ......