P3B-3 Comparison of an Angular Spectrum Method and a Green's Function Method for Nonlinear Propagation of Pulsed Acoustic Fields from Medical Phased Array Transducers

P3B-3 Comparison of an Angular Spectrum Method and a Green's Function Method for Nonlinear Propagation of Pulsed Acoustic Fields from Medical Phased Array Transducers

Predictions of nonlinear ultrasound beams of a medical phased array transducer, steered at 0, 22.5 and 45 degrees, and generated by a forward-wave and a full-wave numerical model are presented. The results from both models show a good agreement in the unsteered situation and in all fundamental field...

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Bibliographische Detailangaben
Hauptverfasser: Huijssen, J., Verweij, M.D., de Jong, N.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic arrays
Acoustic propagation
Acoustic pulses
Acoustic transducers
Biomedical acoustics
Biomedical transducers
Green's function methods
Nonlinear acoustics
Phased arrays
Ultrasonic transducers
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Beschreibung
Zusammenfassung:Predictions of nonlinear ultrasound beams of a medical phased array transducer, steered at 0, 22.5 and 45 degrees, and generated by a forward-wave and a full-wave numerical model are presented. The results from both models show a good agreement in the unsteered situation and in all fundamental field profiles, but they deviate significantly in the harmonic field profiles for the steered situations.
ISSN:1051-0117
DOI:10.1109/ULTSYM.2007.438