AI Article Synopsis
- - The 2021 paper discusses delay-sum beamforming (DAS) in high-frame-rate ultrasound and introduces a new method for determining an f-number related to transducer directivity.
- - Authors Schiffner and Schmitz criticize the link between image quality and measurement noise reduction, arguing that the proposed f-number worsens signal-to-noise ratio (SNR) and should be based on grating lobe angles.
- - In response, the original authors refute the SNR claims, pointing out the limitations of using grating lobes alone to set an f-number and suggest exploring other methods.
Article Abstract
In a 2021 paper, we delved into the details of delay-sum beamforming (DAS) in high-frame-rate ultrasound for medical imaging [1]. We also proposed a simple and fast method of determining an f-number, which is based on the directivity of the transducer elements. In their comment, Martin F. Schiffner and Georg Schmitz argue that we mistakenly link image quality enhancement to the reduction of measurement noise. They disapprove our proposed f-number, claiming it deteriorates the signal-to-noise ratio (SNR). Based on their previous work [2], they also highlight that the f-number should be derived from the grating lobe angles. In this reply, we explain their error in the SNR argument. We also illustrate the potential drawbacks of exclusively relying on grating lobes to establish an f-number with a DAS, suggesting that alternative approaches might be worthy of consideration.
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| http://dx.doi.org/10.1016/j.ultras.2023.107222 | DOI Listing |
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