FujiFilm VisualSonics Vevo MD, User Manual

Page: 264 / 463

Adjusts the signal-to-noise ratio so that you can better:
l
Identify weak-signal targets in the near field that are difficult to distinguish
because they are very small
l
Identify large targets in the far field that are difficult to distinguish due to
attenuation
The higher you set the sensitivity level, the lower the system sets the frame rate.
Tap the Sensitivity button and use the Up and Down buttons to select the required
value.
Filters out signals that correspond to low velocity axial motion. Typically these include
vessel wall movements, and tissue movements caused by respiration.
Increase the filter to reduce the lower velocity signals and bring the waveform of the
spectral data closer to the baseline. Reduce the filter to display more low velocity
signals.
Tap the Wall Filter button and use the Up and Down buttons to cycle through the
available options: Min , Low , Med , High and Max .
264 Scanning