Abstract
A high-resolution ultrasonic imaging system working in pulse-echo mode has been realized for application in dermatology. For data acquisition a spherically focused polymer transducer is mechanically moved. Center frequency of the system is approximately 40 MHz, bandwidth (-6 dB) is about 50 MHz. Resulting axial resolution capability is 24 μm, the obtained lateral resolution characteristics is better than 90 μm.
In this paper the concept of signal processing in the imaging system will be described. Some essential problems specific for high-frequency broadband systems and mainly concerning signal processing will be discussed in detail together with possible solutions. Finally, experimental results proofing usefulness of the system in clinical practice will be shown.
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© 1992 Springer Science+Business Media New York
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Höβ, A., Ermert, H., el-Gammal, S., Altmeyer, P. (1992). Signal Processing in High-Frequency Broadband Imaging Systems for Dermatologic Application. In: Ermert, H., Harjes, HP. (eds) Acoustical Imaging. Acoustical Imaging, vol 19. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3370-2_39
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DOI: https://doi.org/10.1007/978-1-4615-3370-2_39
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