Subharmonic backscattering from ultrasound contrast agents.

  title={Subharmonic backscattering from ultrasound contrast agents.},
  author={P. Mohana Shankar and P D Krishna and Vernon L. Newhouse},
  journal={The Journal of the Acoustical Society of America},
  volume={106 4 Pt 1},
The ultrasonic contrast of blood in tissue, which is needed for ultrasonic estimation of tissue perfusion, can be increased by injecting the blood with bubbles or hollow microspheres. It has been shown that an even greater improvement in contrast can be obtained by using the subharmonic generated by irradiated microspheres. By obtaining analytical solutions to the modified RPNNP equation for a coated microbubble, the relationship between the physical parameters of the encapsulated bubble and… CONTINUE READING

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