Ultrasonic transmitter for coded excitation in medical endoscope imaging system

Shijie Wen; Xiaodong Chen; Jing Bao; Daoyin Yu

doi:10.1117/12.790823

22 February 2008 Ultrasonic transmitter for coded excitation in medical endoscope imaging system

Shijie Wen, Xiaodong Chen, Jing Bao, Daoyin Yu

Proceedings Volume 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology; 662217 (2008) https://doi.org/10.1117/12.790823
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

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.

Citation Download Citation

Shijie Wen, Xiaodong Chen, Jing Bao, and Daoyin Yu "Ultrasonic transmitter for coded excitation in medical endoscope imaging system", Proc. SPIE 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology, 662217 (22 February 2008); https://doi.org/10.1117/12.790823

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