| 摘要 |
<p>A system and method for MR based tracking of a tissue point includes a RF coil assembly (56) configured to emit RF pulse sequences and a system control (32) coupled to the RF coil assembly (56). The system control (32) is programmed to cause the RF coil assembly (56) to emit a first RF pulse comprising a first pair of two-dimensional (2D) spatially selective beams (70, 72), each of the beams being directed to a respective tagging location (74, 76) in the subject of interest (45) and wherein the tagging locations (74, 76) are equidistant from a pre-determined point-of-interest (78). The system control (32) is further programmed to acquire a first series of MR images from a subject of interest (45), identify the first pair of 2D spatially selective beams (70, 72) in each MR image in the first series of MR images, and track a position of the point-of-interest (78) based on the identified 2D spatially selective beams (70, 72) in the first series of MR images.</p> |
