发明名称 |
Ultrasonic detection of brachytherapy seeds based on singular spectrum analysis |
摘要 |
The present invention provides a method for detecting and locating brachytherapy seeds using Singular Spectrum Analysis (SSA). The method exploits the presence of seed-specific repetitive echo signals in detecting seeds and determining their location. Radio frequency (rf) echo signals received from a scanned area of interest are converted to zero-mean envelope-detected signals and then processed using SSA to produce a spectral-power line (a P line). The P line indicates the relative likelihood of a seed being present. A colored P-mode image derived from a set of P lines is superimposed on a conventional ultrasound B-mode image to depict seed location.
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申请公布号 |
US2009163804(A1) |
申请公布日期 |
2009.06.25 |
申请号 |
US20070004670 |
申请日期 |
2007.12.21 |
申请人 |
RIVERSIDE RESEARCH INSTITUTE |
发明人 |
FELEPPA ERNEST J.;MAMOU JONATHAN |
分类号 |
A61B8/00 |
主分类号 |
A61B8/00 |
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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