Specifications

Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 403
Appendix B: Troubleshooting
Problem Solution
Low frequency noise level in PW
Doppler acquisition is high
 Increase the Wall Filter setting.
Noise appears in the image
 Adjust the Sample Volume size and position such that it
includes tissue only.
3D-Mode
Problem Solution
Can’t initialize the motor
 Ensure that the cable for the 3D motor stage is connected to
the rear panel.
 Ensure that the motor is positioned such that there are no
objects obstructing the path of the transducer during
initialization.
Expected data is not acquired
 Ensure the transducer is oriented correctly, with the transducer
arm of the transducer moving perpendicular to the direction of
travel of the 3D motor stage.
 Ensure that the Range and Step Size settings are adequate for
acquiring the desired amount of data.
 If two transducers are connected, ensure that the active
transducer is the one connected to the 3D motor stage.
 Ensure that the transducer is tightly connected to the port on
the front of the cart.
Power Doppler Mode
Problem Solution
Color bands in the image
 Enable Respiration Gating.
 Adjust Wall Filter setting.
 Adjust Scan Speed setting.
 Adjust the Priority settings.
Respiration artifacts in the image
 Enable Respiration Gating.
 Adjust Wall Filter setting.
 Adjust Sweep Speed setting.
Lack of sensitivity
 Ensure the anatomy being studied is in the focal zone for the
transducer.