Generic Area Measurements; Ellipse; Area Trace; Area Point/Area 2Dist./Stenosis % Area - GE Voluson Swift Instructions For Use Manual

Measurements and Calculations

10.2.2 Generic Area Measurements

Note

Ellipse

Area Trace

Area Point
Area 2Dist.
Stenosis % Area
10-6
To re-adjust a previously set measure point, press the upper trackball key (Change/Undo)
before completing a measurement. This will alternate the control from one cursor to the other
(Change) or clear the last trace movement (Undo). This applies to all measurements listed
below.
To measure the area of an ellipse:
Ellipse . The measurement cursor appears.
1. Select
2. Position the first point of the long axis with the trackball and press
3. Position the second point of the long axis and press
4. Adjust the length of the short axis with the trackball and fix it with
This tool measures the area inside a traced boundary. The boundary is traced when the cursor
is moved over the boundary and displayed with a dotted line.
To measure the area trace:
Area Trace . The measurement cursor appears.
1. Select
2. Position the starting point with the trackball and fix it with
3. Trace the area boundary, which is displayed with a dotted line.
4. To finish the measurement press
starting point and the final cursor position(C) and the area(A) is calculated and displayed.
This tool measures the area inside a traced boundary. The boundary is entered with single
points with a linear interpolation in between. The boundary is displayed with a dotted line.
To measure the area point:
Area Point . The measurement cursor appears.
1. Select
2. Position point after point to form linear lines that surround the area of measurement with
the trackball and enter each by pressing
3. To finish the measurement double press
To measure the area of an ellipse defined by two distances:
1. Select Area 2Dist . The measurement cursor appears.
2. Position the cursor on the perimeter of the shape to be measured and press
second cursor appears.
3. Move the second cursor along the longest distance of the object and press
define the long axis of the eclipse.
4. Position the second cursor perpendicular to the first distance at the border of the object
to define the second axis and press
To calculate the stenosis ratio between two areas:
Stenosis%Area . The measurement cursor appears.
1. Select
2. Position the first point of the long axis with the trackball and press
Set .
Set .
Set . The perimeter (Circumference) between the
Set .
Set at the last point.
Set to finish.
Voluson™ SWIFT / Voluson SWIFT+ Instructions For Use
Set .
Set .
Set . A
Set again to
Set .
5831612-100 Revision 4