发明名称 |
Ultrasound imaging method and system for transmit signal generation for an ultrasonic imaging system capable of harmonic imaging |
摘要 |
An improvement to the method for harmonic imaging including the steps of (a) transmitting ultrasonic energy at a fundamental frequency and (b) receiving reflected ultrasonic energy at a harmonic of the fundamental frequency is provided. For the improvement, the transmitting step includes the step of transmitting a uni-polar waveform or a waveform characterized by an amplitude change rate of 8 or fewer times pre carrier cycle, said waveform comprising an envelope shape rising gradually to a respective maximum value and falling gradually from the respective maximum value.
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申请公布号 |
US5913823(A) |
申请公布日期 |
1999.06.22 |
申请号 |
US19970893150 |
申请日期 |
1997.07.15 |
申请人 |
ACUSON CORPORATION |
发明人 |
HEDBERG, DAVID J.;CARP, STUART L.;DODD, STIRLING S.;MASLAK, SAMUAL H.;RAMAMURTHY, BHASKAR S.;NEED, DANIEL E.;HOSSACK, JOHN A. |
分类号 |
A61B8/00;A61B8/08;G01S7/52;(IPC1-7):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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