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 special 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.
申请公布号
WO0111380(A9)
申请公布日期
2001.07.05
申请号
WO2000US21299
申请日期
2000.08.04
申请人
THE GOVERNEMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH & HUMAN SERVICES;ALETRAS, ANTHONY, H.;WEN, HAN