| 摘要 |
A method of scanning objects by means of ultrasound echography, including the repeated transmission of ultrasound signals by means of at least one ultrasound transducer and the reception of the ultrasound echoes which correspond to the principal obstacles encountered by the transmitted signals in their propagation direction, characterized in that the method includes the following operations: (a) storing an echographic line in a memory; (b) determining the power spectrum for a given observation depth, including the correction for the effects of diffraction and attenuation; (c) storing in a memory and/or displaying the scatter function of the object examined as a function of frequency; (d) repeating the operations (b), (c) for every desired depth on a given echographic line, and the operations (a), (b), (c) for other echographic lines.
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