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The objective of this paper is to develop ultrasound signal processing techniques suitable to measure changes in distance between two membranes in a basic human thorax phantom. The two proposed techniques are based on correlation and phase analysis, getting an accuracy of 94.93% and 92.60% respectively regarding to the measurements obtained with the vernier caliper.
This work provides a quantitative specific evaluation of the spectral analysis performance when applied to ultrasonic multiecho-signals, in order to extract information from them, for non-invasive temperature estimation purposes, inside a biological tissue. This specific evaluation was oriented to assess the thermal resolution provided by the application of resolution improvements in this tool. Simulated...
The objective of this work is to define the preliminary bases needed for achieving an evaluation of responses of the spectral analysis technique for non invasive temperature estimation, when applied to multi-echo ultrasonic signals contaminated with increasing noise levels. Power Spectral Density (PSD) of an ultrasonic signal is calculated in order to obtain accurate information about signal frequency...
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