Question

Preprocessing functions occur before the data reaches which component

of the ultrasound system?
a. Pulser
b. Scan converter
c. Receiver
d. Beam former

Answer 1

Pre-processing functions in an ultrasound system occur before the data reaches the scan converter, where the pre-processed signals are digitized and constructed into the final image.

Step-by-step explanation:

In the context of an ultrasound system, pre-processing functions occur before the data reaches the scan converter. When an ultrasound is performed, the echo signals from the body are transformed into electrical signals, which are then amplified and processed by the receiver. However, before reaching the scan converter - which digitizes and constructs the final image for display - these signals must go through several preprocessing steps. These preprocessing steps may include time gain compensation, compression, and harmonic processing. The scan converter effectively translates the preprocessed signals into a form that can be displayed on the ultrasound machine's monitor, making the signal's quality and accuracy vital for clear imaging.