发明名称 |
Method and apparatus for enhancing resolution and sensitivity in color flow ultrasound imaging using multiple transmit focal zones |
摘要 |
A method and an apparatus for increasing the spatial resolution and sensitivity of a color flow image while maintaining a desired acoustic frame rate. The ultrasound energy is concentrated at a more narrowly defined focal region, which allows for increased flow sensitivity and vessel filling. Better flow uniformity across the color region of interest is also achieved. The method uses multiple transmit focal zones, and transmit and receive apertures having low f-numbers. Using multiple focal zones with low f-numbers allows for tight focusing over a larger depth-of-field. Unique waveforms and unique gain curves are used for each focal zone. Each focal zone is fired on a separate acoustic frame. An adaptive frame averaging algorithm is used to blend together the in-focus data from each of these acoustic frames before the data is displayed.
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申请公布号 |
US5908391(A) |
申请公布日期 |
1999.06.01 |
申请号 |
US19970852700 |
申请日期 |
1997.05.07 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MUZILLA, DAVID JOHN;HALL, ANNE LINDSAY;SEYED-BOLORFOROSH, MIR SAID;WASHBURN, MICHAEL J.;BECKER, DAVID D.;MARTINEZ, DORALIE;XU, XIAO-LIANG |
分类号 |
A61B8/06;A61B8/08;G01N29/06;G01N29/34;(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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