SNR Comparisons of Beamforming Strategies

Overview

Journal IEEE Trans Ultrason Ferroelectr Freq Control

Specialties Biomedical Engineering
Nuclear Medicine

Date 2007 May 26

PMID 17523565

Citations 1

Authors

Jie Liu

Kang-Sik Kim

Michael F Insana

Affiliations

Soon will be listed here.

Abstract

This paper defines the echo signal-to-noise ratio (eSNR) for pulse-echo systems that adapts to the effects of shift-varying impulse responses, spatiotemporal coding, and various beamformers. Measurement techniques using point targets or random scattering media can be interrelated for a broad range of experimental conditions through the eSNR. The eSNR definitions are also illustrated by comparing a spatial matched filter (SMF) beamformer to conventional dynamic receive focusing methods to evaluate performance based on resolution and sensitivity. Closed-form expressions are presented that predict eSNR gains from SMF approaches relative to other beamformers.

Citing Articles

Generalized cystic resolution: a metric for assessing the fundamental limits on beamformer performance.

Guenther D, Walker W IEEE Trans Ultrason Ferroelectr Freq Control. 2009; 56(1):77-90.

PMID: 19213634 PMC: 2755266. DOI: 10.1109/TUFFC.2009.1007.

References

Jensen J, Svendsen N . Calculation of pressure fields from arbitrarily shaped, apodized, and excited ultrasound transducers. IEEE Trans Ultrason Ferroelectr Freq Control. 1992; 39(2):262-7. DOI: 10.1109/58.139123. View

Liu J, Insana M . Coded pulse excitation for ultrasonic strain imaging. IEEE Trans Ultrason Ferroelectr Freq Control. 2005; 52(2):231-40. PMC: 2771932. DOI: 10.1109/tuffc.2005.1406549. View

Kim K, Liu J, Insana M . Efficient array beam forming by spatial filtering for ultrasound B-mode imaging. J Acoust Soc Am. 2006; 120(2):852-61. PMC: 2722924. DOI: 10.1121/1.2214393. View

Zemp R, Abbey C, Insana M . Linear system models for ultrasonic imaging: application to signal statistics. IEEE Trans Ultrason Ferroelectr Freq Control. 2003; 50(6):642-54. PMC: 2832334. DOI: 10.1109/tuffc.2003.1209551. View

Fatemi M, Kak A . Ultrasonic B-scan imaging: theory of image formation and a technique for restoration. Ultrason Imaging. 1980; 2(1):1-47. DOI: 10.1177/016173468000200101. View