Yue Li, David Robinson, and David Carpenter
ABSTRACT
A phase-aberration correction algorithm using near-field signal redundancy was proposed in Part I [1]. Here, this algorithm is tested on data collected from phantoms and volunteers. A linear array transducer was used with a synthetic-aperture scanning system. A wedge of plastic gel was used to introduce phase aberrations when collecting data from a phantom. About 40 sets of RF data were collected from eight volunteers. Results from both phantom and volunteer data have shown that the near-field signal redundancy algorithm can improve image quality by correcting phase aberrations when they are present. The results also show that this algorithm is robust.1997 IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 44:372-379
© 1997, by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved.