Meeting Banner
Abstract #2929

Extension of k-space formalism with refocusing RF pulses

Zungho Zun1 and Taehoon Shin2,3,4
1Weill Cornell Medicine, New York, NY, United States, 2Division of Mechanical and Biomedical Engineering, Ewha Womans University, Seoul, Korea, Republic of, 3Graduate Program in Smart Factory, Ewha Womans University, Seoul, Korea, Republic of, 4Department of Medicine, Case Western Reserve University, Cleveland, OH, United States


Conventional k-space analysis of excitation based on Fourier relationship between excitation profile and RF deposit in k-space is extremely useful for pulse sequence design but is strictly limited to the small-tip-angle regime. We propose a new theoretical viewpoint for including refocusing pulses in the k-space formalism and demonstrate that the effect of refocusing pulse can be viewed as origin symmetric rotation of RF deposit in k-space. This new viewpoint may enable analytic approaches to designing RF pulses with multiple refocusing pulses and offer new opportunities to develop complex RF pulses that require insensitivity to off-resonance.

This abstract and the presentation materials are available to members only; a login is required.

Join Here