Share Email Print
cover

Proceedings Paper

The application of coded excitation technology in medical ultrasonic Doppler imaging
Author(s): Weifeng Li; Xiaodong Chen; Jing Bao; Daoyin Yu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Medical ultrasonic Doppler imaging is one of the most important domains of modern medical imaging technology. The application of coded excitation technology in medical ultrasonic Doppler imaging system has the potential of higher SNR and deeper penetration depth than conventional pulse-echo imaging system, it also improves the image quality, and enhances the sensitivity of feeble signal, furthermore, proper coded excitation is beneficial to received spectrum of Doppler signal. Firstly, this paper analyzes the application of coded excitation technology in medical ultrasonic Doppler imaging system abstractly, showing the advantage and bright future of coded excitation technology, then introduces the principle and the theory of coded excitation. Secondly, we compare some coded serials (including Chirp and fake Chirp signal, Barker codes, Golay's complementary serial, M-sequence, etc). Considering Mainlobe Width, Range Sidelobe Level, Signal-to-Noise Ratio and sensitivity of Doppler signal, we choose Barker codes as coded serial. At last, we design the coded excitation circuit. The result in B-mode imaging and Doppler flow measurement coincided with our expectation, which incarnated the advantage of application of coded excitation technology in Digital Medical Ultrasonic Doppler Endoscope Imaging System.

Paper Details

Date Published: 22 January 2008
PDF: 10 pages
Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 68330A (22 January 2008); doi: 10.1117/12.755702
Show Author Affiliations
Weifeng Li, Tianjin Univ. (China)
Xiaodong Chen, Tianjin Univ. (China)
Jing Bao, Tianjin Univ. (China)
Daoyin Yu, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 6833:
Electronic Imaging and Multimedia Technology V
Liwei Zhou; Chung-Sheng Li; Minerva M. Yeung, Editor(s)

© SPIE. Terms of Use
Back to Top