Probe/Program Selection - GE Voluson S6 Basic User Manual

4.6.2 Probe Orientation

4.7 Probe/Program Selection

Voluson® S6/S8 Basic User Manual
5433669-100 Revision 4
When scanning in air (Ultrasound probe is not in contact with a human body or a phantom)
most of the ultrasound energy is reflected at the lens - air surface and bounces back and
forward between that interface and the transducer ceramics. Already the smallest deviation
from the ideal geometrical shape of the reflecting interfaces can cause irregularities in the
reverberation pattern across the transducer surface. However, when the probe is coupled to
the human skin or a phantom by using coupling gel most of the ultrasound energy passes the
lens - skin interface and these small geometrical deviations will have a negligible effect on the
ultrasound signal and image quality. Therefore variations of the reverberation pattern along the
transducer cannot be used for judging image and transducer quality. The use of a tissue
mimicking phantom is strongly recommended to assess image quality.
Each probe is provided with an orientation marking. This mark is used to identify the side of
the probe corresponding to the side of the image having the orientation mark on the display.
Transducer:
1. Mark for direction of insonation
2. Finger
3. Shadowing
This menu shows the connected probes. The denomination of each transducer connected to
the system appears in the corresponding key (softkey). Probe selection is done by selecting
the corresponding key. The key with the selected probe is illuminated. At the same time the
available applications of the selected probe are displayed in the application field. Upon
selection of an Application, a maximum of 7 User program buttons appear in the "Settings"
field, and a Default Setting. The Default Setting is not user-defineable. Program selection is
done by pressing the corresponding keys. For each probe up to 7 programs can be stored.
The Probe/Program Selection Menu enables speedy adjustment of the system for different
Operating the System
Monitor:
1. Shadowing
2. Orientation mark
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