Study of ultrasonic contrast agents using a dual-frequency band technique.

@article{Deng2000StudyOU,
  title={Study of ultrasonic contrast agents using a dual-frequency band technique.},
  author={Cheri X. Deng and Frederic L. Lizzi and Andrew Kalisz and A L Rosado and Ronald H. Silverman and Donald Jackson Coleman},
  journal={Ultrasound in medicine & biology},
  year={2000},
  volume={26 5},
  pages={819-31}
}
We have developed a dual-frequency band technique to study frequency-dependent phenomena associated with ultrasonic contrast agents. Our technique uses a superimposed high-frequency (10 MHz) broad-band ultrasound (US) pulse to investigate contrast agent interaction with a low-frequency (e.g., 0.5 MHz) ultrasonic field. Our digitally controlled system has the ability to produce two colinear, confocal US pulses at different center frequencies, to adjust the relative phasing and pulse repetition… CONTINUE READING
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