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A NEW METHOD FOR THE GENERATION AND USE OF FOCUSED ULTRASOUND IN EXPERIMENTAL BIOLOGY

Open access
Lynn, John G., Zwemer, Raymund L., Chick, Arthur J., Miller, August E.·1942·Journal of General Physiology

Abstract

1. An efficient generator of focused ultrasound has been designed, built, and successfully operated. 2. The generator has been used to produce focal heating in the centers of paraffin blocks, and in a similar manner, focal areas of destruction were obtained deep in fresh liver tissue with minimal effects at the surface and no effects on the intervening tissue. 3. In animals, focused ultrasound of high intensity produced local cerebral changes as inferred from behavior disabilities and as demonstrated at autopsy. This local brain effect was achieved through intervening scalp, skull, and meninges. The resulting behavior disabilities disappeared in from 2 to 16 hours. 4. To date, it has not been possible to produce such brain changes without incidental injury to the skin and subcutaneous tissue lying at the base of the cone of radiation. 5. Improvements in generation and application of the focused supersonic beam are suggested whereby it should be possible to increase still further the focal effects in the brain, with a corresponding decrease or elimination of complicating surface injury.

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Metadata

Authors
Lynn, J. G., Zwemer, R. L., Chick, A. J., & Miller, A. E.
Venue
Journal of General Physiology
Published
1942-11-20
Volume
26
Issue
2
Pages
179-193
ISSN
  • 0022-1295 (ISSN-L)
  • 1540-7748
OpenAlex
W2065685950
Cited by
690
References
0
FWCI
0.00
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A NEW METHOD FOR THE GENERATION AND USE OF FOCUSED ULTRASOUND IN EXPERIMENTAL BIOLOGY. https://app.cochat.ai/papers/10.1085/jgp.26.2.179
The paper
Lynn, J. G., Zwemer, R. L., Chick, A. J., & Miller, A. E. (1942). A NEW METHOD FOR THE GENERATION AND USE OF FOCUSED ULTRASOUND IN EXPERIMENTAL BIOLOGY. Journal of General Physiology. https://doi.org/10.1085/jgp.26.2.179

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.