Amplitude-difference method in the estimation of ultrasonic attenuation-中国Betway体育网页登陆

摘要 Inthispaperanewmethodofultrasonicquantitativediagnosisisdiscribed.Thismethodcanelminatetheeffectofsystemdeviationandlessenthetheeffectofbeamradiationdiffraction.Incanbespp1iedtogetherwithmanykinksofB-scanners.Toverifythemethod,thispaperhasshownanewmethodtomakeatissuephantomandaspecialapparatus.Theresultsshowthatthemethodisusefulinthediagnosisofdiffuseliverdiseases,tumorsandcanccrs.Itisalsousefulintheappraisalofthehealthandthestagesoffetus.

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Amplitude-difference method in the estimation of ultrasonic attenuation

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