Diffraction Correction for Attenuation Estimation in Medical Diagnostic Ultrasound

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专利权人:

发明人:

Yassin Labyed,Kutay F. Ustuner

申请号：

US15472024

公开号：

US20180284251A1

申请日:

2017.03.28

申请国别(地区):

US

年份:

2018

代理人:

摘要：

For estimating attenuation, diffraction effects are corrected by transmitting at different frequencies using apertures sized to match the on-axis intensity profile and/or resolution cell size between the transmissions where there is no attenuation. Attenuation causes a variance in return. A rate of change is estimated from a ratio of the magnitude of the signals or displacements responsive to the transmissions. The attenuation is calculated from the rate of change over depth of the ratio.

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中国工程科技知识中心

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