发明名称 |
Method and apparatus for making an image of a lumen or other body cavity and its surrounding tissue |
摘要 |
Method and apparatus for making an image of a lumen and surrounding tissue in a body by inserting a transducer in the cavity and emitting ultrasound signals and collecting and processing echo signals to form an image, where the apparatus includes a signal processor arranged for performing the steps of and the method includes the steps of: a) obtaining echo signals from tissue at a given state of mechanical stress in a chosen direction; b) obtaining similar echo signals after a change of the mechanical stress; c) identifying the lumen-tissue boundary; d) comparing the echo signals to obtain a parameter indicative of tissue stiffness; e) performing similar steps for a number of directions; f) deriving and displaying the conventional echo image of the lumen and surrounding tissue from the echo signals of step a); g) superimposing in said image the tissue stiffness as a coded line along the lumen-tissue boundary.
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申请公布号 |
US6165128(A) |
申请公布日期 |
2000.12.26 |
申请号 |
US19980166016 |
申请日期 |
1998.10.05 |
申请人 |
ENDOSONICS CORPORATION |
发明人 |
CESPEDES, E. I.;DE KORTE, C. L.;VAN DER STEEN, A. F. W. |
分类号 |
A61B1/00;A61B8/08;A61B8/12;(IPC1-7):A61B8/12 |
主分类号 |
A61B1/00 |
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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