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