发明名称 |
ADAPTIVE CANCELLATION OF RING-DOWN ARTIFACT IN IVUS IMAGING |
摘要 |
<p>In an intravascular ultrasonic (IVUS) imaging system ring-down artifact is reduced or eliminated by dynamically enhancing the ring-down over a plurality of scans, determining the ring-down range by keying on a ring-down-to-blood transition characterized by a rapid change from high amplitude to low amplitude echoes, and using a spectral pattern for a single or several A-scans within the ring-down range, using for example an FFT analysis, as the basis of selectively filtering current or subsequent images using the recently computed ring-down pattern.</p> |
申请公布号 |
EP1117332(B1) |
申请公布日期 |
2005.08.31 |
申请号 |
EP19990940432 |
申请日期 |
1999.09.13 |
申请人 |
BOSTON SCIENTIFIC LIMITED |
发明人 |
GRUNWALD, SORIN;TEO, TAT-JIN |
分类号 |
A61B8/12;A61B8/00;G01S7/52;G01S7/524;(IPC1-7):A61B8/00 |
主分类号 |
A61B8/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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