Ultrasound Image Formation from Doppler Transducer

Conference paper
First Online:
Part of the Springer Proceedings in Physics book series (SPPHY, volume 193)

Abstract

This research aims to determine image formation of the radio frequency (RF) signal obtained from a Doppler transducer. Radio Frequency (RF) signal is the result of reflection (echo) of the ultrasonic waves when transmitted on a particular tissue or organ. Echo of the wave is then detected by the transducer, which converts the waves into electronic acoustic signals to be processed and reconstructed into an image. A shift in frequency when the affected surface ultrasound beam moves is the base of the Doppler ultrasonography. Doppler is an ultrasound probe that price is quite affordable. RFsignal from the Doppler transducer is processed in several stages. These stages are bandpass filtering, envelope detection and logarithmic compression. From the experiments, this system can form a B-mode image and the image harmonic of the RFsignal obtained from the Doppler transducer. The bandwidth value, used in the Gaussian filtering process, has an influence on the intensity value of the ultrasound image is produced. The smaller the value of the bandwidth, the better the resulting ultrasound image. The best bandwidth value that used in this study is 5. The total time required to form an ultrasound image in the seven times scanning is 87.16 s. The average time in one scanning is about 11.94 s.

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Notes

Acknowledgements

Authors thank profusely The Directorate General of The Higher Education Department of Education, which has financed the program through the Letter of Agreement Implementation Research: 429.10/ST/003/LPPM/Lit/IV/2016, Date: 29 April 2016.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of Informatics EngineeringUniversity 17 Agustus 1945 SurabayaSurabayaIndonesia

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