GE Voluson E10 Training Manual
© 2017 Conquest Imaging
System Front End Components
This section covers system frontend topics for the GE Voluson E10.
Front End is a general term for the parts of the ultrasound system
that receive the reflections from acoustic energy that have been
transmitted into the body and perform the various signal processing
functions on them needed to produce an ultrasound image. The
following are some of the components and functions that are found
in a typical ultrasound system front end:
Transducers – Transmit focused acoustic energy and receive the
resultant reflections.
High voltage switches – Used for multiplexing (connects a
particular transducer element to a particular transmitter/receiver
pair)
High voltage transmitters – Transmit analog data from the
transducers.
Time Gain Control Amp (TGC) – A variable gain amplifier (VGA) is
used to compensate for image variations due to tissue depth.
Analog to Digital converter and noise filtering.
Digital Beamformers – Upconverts signals which increases
sample rates. The signals are stored in memory, apodized and
summed.
Beamformed Digital Signal Processing – The digital beamformed
signals received are processed into visual and audio outputs the
process of which depends on if the transducer is B-mode (2D),
Doppler, PWD or CWD.
The front end manages the input from the transducers, performs
Analog to Digital conversion, Digital to Analog conversion along with
many other signal processing functions.
Voluson E10 Front End Processor (FEP)
In the Voluson E10 systems the front end beamforming electronics
are comprised of the following boards:
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