Nonlinear coded excitation method for contrast imaging

Author

Borsboom, Jerome ; Chin, Chien Ting ; Bouakaz, Ayache ; De Jong, Nico

Author_Institution

Dept. of Cardiology & Exp. Echocardiography, Erasmus Univ., Rotterdam, Netherlands

Volume

2

fYear

2001

fDate

2001

Firstpage

1729

Abstract

Bursts are more effective than short pulses in generating strong response from an ultrasound contrast agent bubble. We propose chirped excitation signals in combination with a 2^nd harmonic compression technique to improve the signal strength from the contrast agent. Results show good compression if the excitation chirp is band-limited. Range side lobes appear in the compressed signal if there is overlap between the harmonics and the fundamental

Keywords

biomedical ultrasonics; bubbles; chirp modulation; harmonics; ultrasonic imaging; band-limited excitation chirp; chirped excitation signals; contrast imaging; diagnostic ultrasound; medical US imaging; microbubbles; nonlinear coded excitation method; range side lobes; resolution; second-harmonic compression technique; signal strength improvement; tissue; ultrasound contrast agent bubble; Cardiology; Chirp; High-resolution imaging; Image coding; Pulse compression methods; Pulse modulation; Scattering; Signal resolution; Signal to noise ratio; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2001 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7177-1

Type

conf

DOI

10.1109/ULTSYM.2001.992055

Filename

992055