By Topic

On the Optimization of the Transmitted Beam in Contrast-Enhanced Ultrasound Medical Imaging

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Curletto, S. ; Genoa Univ., Genoa ; Palmese, M. ; Trucco, A.

The optimization of the ultrasound pulses transmitted by an echographic scanner is considered here in order to attain an insonification beam having a quasi-constant pressure profile over a large depth interval. An equalized pressure intensity allows a correct exploitation of the ultrasound contrast agent injected into the human body and, in turn, permits one to fully exploit its nonlinear response. A stochastic method of synthesis (based on the simulated annealing scheme) that is able to produce the desired transmission beam profile, acting simultaneously on the carrier frequencies of the acoustic pulses emitted by the array's transducers and on the apodizing weights, has been developed and assessed. The results obtained by the joint optimization, in terms of acoustic pressure profile, sidelobe level, and main lobe shape, are reported, discussed, and compared with those obtained by the traditional emission strategy and by the exclusive optimization of the apodizing weights or the carrier frequencies. A significant improvement of the ultrasound beam generated by the joint optimization over those generated by the exclusive optimization is pointed out.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:56 ,  Issue: 4 )