A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/055 (2006.01) G01R 33/563 (2006.01) G01R 33/567 (2006.01)
Patent
CA 2089764
A technique for generating "optimal" radio frequency pulses for use in creating SPAMM imaging stripes and for quantitatively de- termining the displacements of the imaging stripes during a pre-imag- ing interval. The imaging operator selects the desired stripe parame- ters (304) so that the resulting SPAMM imaging stripe will have the desired narrowness, sharpness, flatness and the like. These parame- ters are then used by an optimal pulse generating system (212) to gen- erate the input radio frequency pulse sequence which will produce the desired stripes. Tagging of the heart wall or some other soft tissue structure with a grid of planes of altered magnetization is then used to provide finite element analysis to quantify regional heart wall motion and the like. The intersections of the tagging stripes are used as a set of fiducial marks within the heart wall, and the motion of these inter- sections through the heart cycle is used to track the motion of the un- derlying tissue.
Axel Leon
Shinnar Meir
Borden Ladner Gervais Llp
The Trustees Of The University Of Pennsylvania
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