Diffraction Correction Methods for Insertion Ultrasound Attenuation Estimation

Wei Xu, Jonathan J. Kaufman

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

We describe diffraction effects in acoustic ultrasound attenuation coefficient estimation using an insertion technique. We characterize the estimation error produced by diffraction as a function of distance and nominal attenuation values. Two new methods for correcting for the diffraction effect are presented. They are termed the Theoretical Diffraction Correction (TDC) and Experimental Diffraction Correction (EDC) techniques, respectively. Experimental validation of the two techniques is also presented, using two different sets of ultrasound measurements obtained with 1 MHz and 500 kHz transducer pairs, respectively. Significant improvement in the accuracy of the acoustic attenuation coefficient is demonstrated using both techniques.

Original languageEnglish
Pages (from-to)563-570
Number of pages8
JournalIEEE Transactions on Biomedical Engineering
Volume40
Issue number6
DOIs
StatePublished - Jun 1993
Externally publishedYes

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