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Comment
. 2020 Jul 28;117(30):17473-17475.
doi: 10.1073/pnas.2011999117. Epub 2020 Jul 10.

A sound option for the removal of kidney stones

Adrian C Barnes  1
Affiliations
Comment

A sound option for the removal of kidney stones

Adrian C Barnes. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The author declares no competing interest.

Figures

Fig. 1.
Fig. 1.
A representation of the topological charge for a segmented ultrasonic transducer. With M = 0 there is no phase difference in emission from the transducers. For integer M ≠ 0 there is a total phase change of 2πM when following a circumferential path around the transducer that gives rise to a helical wavefront. Positive and negative values of M give rise to clockwise or anticlockwise rotations of the helical wavefront. The phase discontinuity at the center of the array can be seen.
See this image and copyright information in PMC

Comment on

  • Noninvasive acoustic manipulation of objects in a living body.
    Ghanem MA, Maxwell AD, Wang YN, Cunitz BW, Khokhlova VA, Sapozhnikov OA, Bailey MR. Ghanem MA, et al. Proc Natl Acad Sci U S A. 2020 Jul 21;117(29):16848-16855. doi: 10.1073/pnas.2001779117. Epub 2020 Jul 6. Proc Natl Acad Sci U S A. 2020. PMID: 32631991 Free PMC article.

References

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