9  eSieFusion Imaging 
Instructions for Use  9 - 7 
Quality Indicators 
After the tracking system is initialized, the ultrasound system displays graphical tracking quality 
indicators for the transducer sensor and the needle tracking sensor. The indicator displays a 
green bar across the width of the indicator when tracking quality is high. If the indicator displays 
a yellow bar, move the transmitter closer to the patient. 
The system displays a message if the transducer or needle is not detected: 
Sensor 1 Unplugged 
Needle Unplugged 
 
Example of the tracking quality indicators. 
1  Tracking quality indicator for the transducer sensor 
2  The port number on the tracking system for the active transducer sensor 
3  Tracking quality indicator for the needle sensor