发明名称 |
MRI center point artifact elimination using realtime receiver phase control |
摘要 |
A method and apparatus for eliminating baseline error artifacts in NMR images produced using ultrafast pulse sequences including alternating the phase of a reference signal during the reception of NMR echo signals to invert alternate views in the acquisition. The inverted views are re-inverted prior to image reconstruction such that any dc levels introduced during acquisition are converted to a high spacial frequency which moves the resulting artifacts to the borders of the image reconstructed using a Fourier transformation.
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申请公布号 |
US5541513(A) |
申请公布日期 |
1996.07.30 |
申请号 |
US19950422383 |
申请日期 |
1995.04.14 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MAIER, JOSEPH K. |
分类号 |
G01R33/32;A61B5/055;G01R33/46;G01R33/561;G06T1/00;(IPC1-7):G01R33/48 |
主分类号 |
G01R33/32 |
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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