Searched for: subject%3A%22biomedical%255C+ultrasonics%22
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document
Verweij, M.D. (author), Demi, L. (author), Van Dongen, K.W.A. (author)
Nonlinear ultrasound is important in medical diagnostics because imaging of the higher harmonics improves resolution and reduces scattering artifacts. Second harmonic imaging is currently standard, and higher harmonic imaging is under investigation. The efficient development of novel imaging modalities and equipment requires accurate simulations...
journal article 2013
document
Maresca, D. (author), Jansen, K. (author), Renaud, G. (author), Van Soest, G. (author), Li, X. (author), Zhou, Q. (author), De Jong, N. (author), Shung, K.K. (author), Van der Steen, A.F.W. (author)
We demonstrate the feasibility of intravascular ultrasound (IVUS) chirp imaging as well as chirp reversal ultrasound contrast imaging at intravascular ultrasound frequency. Chirp excitations were emitted with a 34?MHz single crystal intravascular transducer and compared to conventional Gaussian-shaped pulses of equal acoustic pressure. The...
journal article 2012
document
Demi, L. (author), Van Dongen, K.W.A. (author), Verweij, M.D. (author)
Experimental data reveals that attenuation is an important phenomenon in medical ultrasound. Attenuation is particularly important for medical applications based on nonlinear acoustics, since higher harmonics experience higher attenuation than the fundamental. Here, a method is presented to accurately solve the wave equation for nonlinear...
journal article 2011
document
Huijssen, J. (author), Verweij, M.D. (author)
The development and optimization of medical ultrasound transducers and imaging modalities require a computational method that accurately predicts the nonlinear acoustic pressure field. A prospective method should provide the wide-angle, pulsed field emitted by an arbitrary planar source distribution and propagating in a three-dimensional, large...
journal article 2010
Searched for: subject%3A%22biomedical%255C+ultrasonics%22
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