11.2.2.6 Stenosis Area/Stenosis Diameter
To calculate the Stenosis Area or the Stenosis Diameter in 2D mode:
1. Press the [Calc] key on the control panel.
2.
Select the desired item. For example: select [Left Renal Artery].
3. Select the appropriate measurement parameter [Stenosis Area] or [Stenosis Diameter].
4. To measure the outer area (resp. outer diameter), use the trackball to move the cursor to
the start point of the measurement and press the right or left trackball key [Set] to fix the
marker.
5. Move the second cursor to the second point of the measurement and press [Set] again.
Note
To re-adjust the start point, press the upper trackball key [Change] before completing the
measurement. This alternates the control from one cursor to the other.
6. Only if [Stenosis Area] is selected, adjust the width of the ellipse by means of the
trackball and then press the right trackball key [Set] again.
7. Perform the measurement of the inner area (resp. diameter) in the same manner as
described above.
The results (such as outer and inner area resp. diameter and the Stenosis %) appear
automatically.
11.2.2.7 Abdomen Calculations in M Mode
•
Vessel Diameter
(chapter
'Vessel Diameter'
on page 11-29
)
Measurements and Patient Worksheets (Reports)
11-28
Voluson® S6/S8 Basic User Manual
5433669-100 Revision 4
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