专利名称：Medical diagnostic ultrasound contrast
agent destruction with reduced biologicaleffect
发明人：Anming He Cai,Lewis J. Thomas申请号：US11302567申请日：20051213公开号：US07946988B2公开日：20110524
专利附图：
摘要：Contrast agent destruction transmissions have reduced biological effect inmedical diagnostic ultrasound. Ramping-up amplitude and/or ramping-down frequencyreduce biological effect. The amplitude ramps up linearly or non-linearly. The change inamplitude or frequency occurs over a single waveform or over a sequence of separatetransmissions. An envelope of the single waveform or the sequence of separate
transmissions has a non-uniform, asymmetrical, symmetrical, rectangular or other shape.For example, the frequency ramp-down is provided with a non-Gaussian envelope. Theamplitude ramp-up or frequency ramp-down is a progressively increasing destructivecharacteristic or ability, destroying contrast agent at different regions relative to focalregions with a minimum of acoustic energy.
申请人：Anming He Cai,Lewis J. Thomas
地址：San Jose CA US,Palo Alto CA US
国籍：US,US
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