Shung, K. Kirk Bioengineering Program, Pennsylvania State University, University Park, Pennsylvania.
Last reviewed:October 2019
- Ultrasonic wave propagation
- Characteristic acoustic impedance
- Attenuation, reflection, and scattering
- Doppler effect
- Ultrasonic imaging
- Flow measurements
- Color Doppler flow imaging
- Multidimensional arrays
- 3D imaging and parallel processing
- Contrast media and harmonic imaging
- Biological effects of ultrasound
- Therapeutic ultrasound
- Related Primary Literature
- Additional Reading
The applications to medicine and biology of sound waves that have a frequency higher than the audible spectrum. Biomedical applications of ultrasound range from cell sonicators using frequencies in the kilohertz range to ultrasonic imaging in the megahertz range. The best-known application, ultrasonic imaging, is the second most utilized diagnostic imaging modality, after x-rays. High-intensity ultrasound has been used for therapeutic applications.
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