Simulation analysis on effectiveness of nonlinear ultrasound imaging using synthetic cyst phantoms

Abstract

Application of nonlinear ultrasound techniques is recently gaining importance in medical imaging. Ultrasound imaging is a commonly used diagnostic method due to its low cost, safe and portable facilities. However, linear ultrasound imaging provides poor resolutions. The harmonic content can provide better resolution rather than the fundamental frequency. Conversely, increasing complexity is obvious impact of nonlinearity consideration.This simulation study presents a comparative analysis of linear and non-linear ultrasound imaging of different synthetic phantoms in order to find the effectiveness on nonlinear ultrasound techniques. We have used two widely accepted ultrasound simulator Field II and CREANUIS. Synthetic phantom has been developed considering both linear and non-linear propagation media with possible inhomogeneous coefficient of nonlinearity. Simulated images have been examined in terms of SNR, CNR and resolution. The nonlinear imaging has showed its effectiveness over linear technique for the images with closely located multiple cysts where lateral resolution is important.

Unraveling the Complexity with Applications of Nonlinear Analysis in Signal Processing and Communication Engineering

“…A comparable upsurge in research projects utilising nonlinear analysis is observed in the field of communication engineering. [11] research sheds light on the use of nonlinear approaches in creating reliable communication systems that can withstand noise and signal distortions. Their work demonstrates how nonlinear equalisation techniques greatly improve the effectiveness and dependability of contemporary communication networks, setting the stage for systems that are more resistant to interference.…”