Denoising of hepatic signals with Partial Cycle Spinning

Partial Cycle Spinning (PCS) is a technique that allows denoising of signals with lower complexity than Cycle Spinning (CS). PCS is a simplified version of CS, in which only a subset of the shifts used in CS is used. The results obtained with PCS show some variability depending on the shifts chosen. The quality of the processed signals can be improved by taking advantage of this variability. This paper presents a study of the influence of the choice of shifts on the PCS algorithm for medical signal denoising applications, to be more precise for hepatic signals of ultrasonic origin. The results obtained, both for synthetic signals and ultrasonic hepatic signals, show how the choice of shifts in the PCS algorithm influences the quality of the final processed signal.