Increasing the depth of focus in medical ultrasound B-scan

Yibin Zheng; Seth D. Silverstein

doi:10.1117/12.597350

11 March 2005 Increasing the depth of focus in medical ultrasound B-scan

Yibin Zheng, Seth D. Silverstein

Author Affiliations +

Proceedings Volume 5674, Computational Imaging III; (2005) https://doi.org/10.1117/12.597350
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

Obtaining hight quality ultrasound images at high frame rates has great medical importance, especially in applications where tissue motion is significant (e.g. the beating heart). Dynamic focusing and dynamic apodization can improve image quality significantly, and they have been implemented on the receive beam in state-of-the-art medical ultrasound systems. However implementing dynamic focusing and dynamic apodization on the transmit beam compromises frame rate. We present a novel transmit apodization scheme where a continuum of focal points can be obtained in one transmission, and uniform sensitivity and uniform point spread function can be achieved over very large range without reducing frame rate. Preliminary simulations demonstrate significant promises of the new technique.

Citation Download Citation

Yibin Zheng and Seth D. Silverstein "Increasing the depth of focus in medical ultrasound B-scan", Proc. SPIE 5674, Computational Imaging III, (11 March 2005); https://doi.org/10.1117/12.597350

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