发明名称 |
Method and apparatus for locking sample volume onto moving vessel in pulsed doppler ultrasound imaging |
摘要 |
A method and an apparatus for automatically maintaining the Doppler sample gate position at a preselected vessel position in B-mode or color flow images during tissue or probe motion. The sample gate is locked onto the selected vessel automatically when the vessel position has changed. Optionally, the vessel slope cursor is automatically updated when the vessel position has changed. The method employs pattern matching of images from successive frames to determine how much a vessel in the image frame has been translated and rotated from one frame to the next. Preferably, either a cross-correlation method is applied to the imaging data in the spatial domain to determine the relative object translation and/or rotation between image frames, or a matched filtering method is applied to the imaging data in the frequency (i.e., Fourier) domain to determine the relative object translation and/or rotation between image frames.
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申请公布号 |
US6390984(B1) |
申请公布日期 |
2002.05.21 |
申请号 |
US20000661749 |
申请日期 |
2000.09.14 |
申请人 |
GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC |
发明人 |
PAN LIHONG;MO LARRY Y. L.;DONG FANG;OWEN CYNTHIA ANDREWS;STANSON ROBERT S.;KRISTOFFERSEN KJELL |
分类号 |
A61B8/06;G01S15/58;G01S15/89;G06T1/00;G06T7/20;(IPC1-7):A61B8/00 |
主分类号 |
A61B8/06 |
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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