| A stochastic discrete model of tissue and its ultrasonic backscattering coefficient |
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| 作者姓名： | WANG Shuchu ZHANG Hailan and YING Chongfu |
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| 作者单位： | Institute of Acoustics. Academia Sinica，Beijing 100080 |
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| 摘 要： | TheprojectissupportedbyNationalNaturalScienceFoundationofChina.I.IntroductionU1trasonicpropagationandscatteringinthebiologica1softtissuesisabasicprob-lemofbiomedica1u1trasonics,andu1trasonicbackscatteringfromthetissucsproduccs..importantinformationfortissuecharacterizationaswe11asfortissueimagind'.2].Tissuemodellingisfundamentalfortheanalysisofultrasonicbackscattering.Vari-ousmode1shavebeensuggestedwithapartialsuccess.Sofar,therearetwomajortypesofmodc1s,theinhomogeneouscontinuummode1andthed…
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A stochastic discrete model of tissue and its ultrasonic backscattering coefficient |
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| Authors: | WANG Shuchu ZHANG Hailan and YING Chongfu |
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| Abstract: | The discrete scatterer model is improved to take into account the random distribution of the size and the acoustic impedance of scatterers. The backscattering coefficient and its dependence on the frequency are calculated and analyzed. An experiment with a liver mimic phantom is conducted to verify the theoretical model. |
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| Keywords: | Tissue Backscattering coefficient Biomedical ultrasonics |
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