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Proceedings Paper

Ultrasonic transmitter for coded excitation in medical endoscope imaging system
Author(s): Shijie Wen; Xiaodong Chen; Jing Bao; Daoyin Yu
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Paper Abstract

In this paper, we introduced an ultrasonic transmitter for coded excitation used in medical ultrasonic endoscope, which is mainly composed of MD1211 and TC6320. Since the ultrasonic endoscope uses a miniature ultrasonic probe whose length is no more than 14mm, and the diameter is no more than 2.2mm, the ultrasonic excitation power is very low, which makes it difficult to obtain a sharp image. So it is very important to use coded excitation to enhance image quality, which can improve the SNR of the echo without degrading the axial resolution. The transmitter accepts coded signals from FPGA and transforms them to ±60V driving signals which are sent to transducer, making it easy to implement coded excitation in ultrasonic endoscope.

Paper Details

Date Published: 22 February 2008
PDF: 7 pages
Proc. SPIE 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology, 662217 (22 February 2008); doi: 10.1117/12.790823
Show Author Affiliations
Shijie Wen, Tianjin Univ. (China)
Xiaodong Chen, Tianjin Univ. (China)
Jing Bao, Tianjin Univ. (China)
Daoyin Yu, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 6622:
International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology

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