发明授权
- 专利标题： Ultrasonic detection of contrast agents
- 专利标题（中）： 超声波检测造影剂
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申请号： US344266申请日： 1994-11-23
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公开(公告)号： US5456257A公开(公告)日： 1995-10-10
- 发明人: Keith W. Johnson , Jeffry E. Powers
- 申请人： Keith W. Johnson , Jeffry E. Powers
- 申请人地址： WA Bothell
- 专利权人： Advanced Technology Laboratories, Inc.
- 当前专利权人： Advanced Technology Laboratories, Inc.
- 当前专利权人地址： WA Bothell
- 主分类号： A61B8/00
- IPC分类号： A61B8/00 ; G01S7/52
摘要：
An ultrasonic diagnostic system is provided which detects the presence of coated microbubble contrast agents in the body of a patient by transmitting ultrasonic energy which causes the destruction of the coated microbubbles and detects the microbubble destruction through phase insensitive detection and differentiation of echoes received from two consecutive ultrasonic transmissions. The destruction of a microbubble can also be used as a point source of acoustic energy for aberration correction, whereby the timing of the beamformer is adjusted from an analysis of beamformer signals resulting from a detected microbubble destruction event.