发明名称 |
Methods and apparatus for mapping internal and bulk motion of an object with phase labeling in magnetic resonance imaging |
摘要 |
Magnetic resonance imaging method and apparatus are provided for mapping the internal or bulk motion of an object by labeling the phase of a specimen magnetization with a selected spatial function and measuring changes in the phase of the magnetization. The spatial function is selectable to provide magnetization phase modulation corresponding to displacements in a selected direction, such as a radial or azimuthal direction. Methods and apparatus for producing images based on magnetization phase modulation acquire image data based on stimulated echos and stimulated anti-echos. In an embodiment, a series of 180 degree pulses produces alternating stimulated and stimulated anti-echos that are measured and assigned to respective images.
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申请公布号 |
US7233818(B1) |
申请公布日期 |
2007.06.19 |
申请号 |
US20000049005 |
申请日期 |
2000.08.04 |
申请人 |
UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE DEPARTMENT OF HEALTH AND HUMAN SERVICES |
发明人 |
ALETRAS ANTHONY H.;WEN HAN |
分类号 |
A61B5/055 |
主分类号 |
A61B5/055 |
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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