Journal article
Characterization of optoacoustic surgical devices
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 43(4), pp 519-526
Jul 1996
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Describes a measurement technique specially developed to characterize optoacoustic sources. The technique provides a convenient baseline for a comparison of different surgical ultrasonic systems utilizing optoacoustic and ultrasonic transducers. In addition, it provides a well-defined tool to optimize the performance of a variety of designs. Attention is focused on the laser-assisted devices in which appropriately delivered light energy is converted into acoustic shock wave. A meaningful comparison of such devices with other therapeutic equipment designed for a direct interaction with tissue requires knowledge of energy needed for a successful surgical treatment. It is demonstrated that knowledge of the key shock wave parameters allows the total acoustic energy associated with the shock wave to be determined. The procedure developed to calculate this energy is discussed and it is shown that the value of this energy can be conveniently used as an indicator of efficacy of an optoacoustic converter in a clinical environment. The influence of the performance of the polyvinylidene fluoride (PVDF) hydrophone probes on the measurement results was also analyzed. It was determined that when appropriately selected, the wide-band PVDF probes are well suited for characterization of the optoacoustic devices in the frequency range 1-100 MHz. The characterization procedure developed is applicable to surgical ultrasonic systems including conventional and laser-assisted phacoemulsifiers.
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Details
- Title
- Characterization of optoacoustic surgical devices
- Creators
- P.A Lewin - Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USAR BhatiaQ ZhangJ.M Dodick
- Publication Details
- IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 43(4), pp 519-526
- Publisher
- IEEE
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:A1996UW85400004
- Scopus ID
- 2-s2.0-0030195195
- Other Identifier
- 991014878624504721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Acoustics
- Engineering, Electrical & Electronic