Abstract
The use of ultrasound for visualization in medical practice is based on its possibility to penetrate into the human body and to interact with tissue. Information on the body structure is coded in passed and scattered acoustical fields, and the aim of the visualization system is to interpret this information. These effects of reflection and refraction on media boundaries can be appreciable: in the frequency band 0.8 ... 15 MHz used in ultrasonic diagnostics and therapy for tested inclusions the geometrical optics conditions are satisfied and reflection coefficients at right angles of incidence vary from −2 dB (bone/soft tissues or water) and −18 dB (crystalline lens/glassy body or liquid of the front chamber) to −50 dB (blood/cerebrum)1.
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© 1995 Springer Science+Business Media New York
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Borodina, E.L., Kazulin, F.A., Sukhov, S.S., Khil’ko, A.I., Zyganov, A.G. (1995). Ultrasonic Reconstruction of Brain Pathologic Inclusions. In: Jones, J.P. (eds) Acoustical Imaging. Acoustical Imaging, vol 21. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1943-0_49
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DOI: https://doi.org/10.1007/978-1-4615-1943-0_49
Publisher Name: Springer, Boston, MA
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