发明名称 |
Method for magnetic resonance image acquisition and reconstruction of the basic of wavelet encoding |
摘要 |
For obtaining image information from a subject, in an excitation phase nuclear resonance signals are excited with wavelet-encoding by emitting a radio-frequency pulse under the influence of a gradient in a first direction, the pulse having an envelope that corresponds to the Fourier transforms of a wavelet function. In addition, a layer selection is achieved by the application of an oscillating gradient in a second direction. In a readout phase, a gradient echo signal is sampled under the influence of a readout gradient in a third direction. The pulse sequence can be repeated with a repetition time that is shorter than the longitudinal and transverse relaxation time, so that a steady state arises.
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申请公布号 |
US5821751(A) |
申请公布日期 |
1998.10.13 |
申请号 |
US19960747901 |
申请日期 |
1996.11.14 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
WENDT, MICHAEL;BUSCH, MARTIN |
分类号 |
G01R33/48;G01R33/561;(IPC1-7):A61B5/055 |
主分类号 |
G01R33/48 |
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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