@inproceedings{96787f5575484454bbce7ef5f73ef38f,
title = "Quadratic B-mode (QB-Mode) ultrasonic imaging with coded transmit waveforms",
abstract = "In this paper, the use of coded transmit waveforms with post-beamforming nonlinear filtering of echo data in diagnostic ultrasound is presented. The nonlinear filter based on the second-order Volterra filter (SoVF) model separates the linear and quadratic echo components. The grayscale representation of the latter results in a new mode of imaging we refer to as quadratic B-mode (QB-mode). The use of chirp transmit waveforms in imaging contrast agents allows for nonlinear excitation of microbubble contrast agents (UCA) at a range of frequencies throughout the bandwidth of the transducer. The QB-mode image is shown to produce significant increase in UCA contrast over standard B-mode images from conventional and chirp excitation with and without compression. This contrast enhancement is achieved without loss in spatial resolution.",
keywords = "Beamforming, Contrast agents, Contrast enhancement, Volterra filter",
author = "Daniele Cecchini and Yao Hui and Pornchai Phukpattaranont and Ebbini, {Emad S}",
year = "2005",
month = dec,
day = "1",
language = "English (US)",
isbn = "0780387406",
series = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",
pages = "7417--7420",
booktitle = "Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005",
note = "2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 ; Conference date: 01-09-2005 Through 04-09-2005",
}