Navigation technology uses electro-magnetic signal to track the needle and the ultrasound probe’s 3D movements.

A transmitter in a navigation system creates an electro-magnetic field in 3D space. Sensors, which are fixed on the needle instruments or ultrasound probes, receive the electro-magnetic signal. The system then presents the position and direction of the sensor including the position and direction of the needle instruments and the ultrasound probes. A simulated 3D image of needle instrument with obtained information of direction and position is created and displayed in real time tracking.
The navigation system also combines the anatomic imaging of a patient (ultrasound, CT or MR) with the simulated image of needle instrument, which can then navigate for the percutaneous procedure.