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- W2034854817 abstract "In recent years, B scanners have been widely used clinically. Obviously, it is of particular importance to use the commercial B scanners to characterize tissue by estimating its ultrasonic attenuation in vivo. However, there are a lot of difficulties in doing so because the output of a B scanner is affected by many unknown factors. In this paper, a time domain method named the difference ratio correction (DRC) method is proposed to estimate the ultrasonic attenuation of tissue in vivo. In this method, three tissue-mimicking phantoms with known acoustical properties were employed to eliminate the instrumentation errors of the B scanner and the measuring system and to correct beam diffraction for correct attenuation estimation. Other advantages of this method are that it is very convenient to apply this method clinically and there is no need to change the inner construction of the B scanner because this method only utilizes the video output. Experimental and clinical results have proved the validity of this method." @default.
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- W2034854817 date "1992-11-01" @default.
- W2034854817 modified "2023-09-27" @default.
- W2034854817 title "Ultrasonic attenuation estimation <i>i</i> <i>n</i>-<i>v</i> <i>i</i> <i>v</i> <i>o</i> using the difference ratio correction method" @default.
- W2034854817 doi "https://doi.org/10.1121/1.404423" @default.
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