© 2009 IEEE. Reprinted, with permission, from Sébastien Ménigot, Anthony Novell, Ayache Bouakaz and Jean-Marc Girault, Improvement of the power response in contrast imaging with transmit frequency optimization, 2009 IEEE International Ultrasonics Symposium (IUS), 20---23 Sept. 2009. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the Université François Rabelais de Tours' products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org.
