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Abstract #2629

The optimization of three adiabatic pulses with constant amplitude spin-lock

Yuxin Yang1, Xi Xu1, Yuanyuan Liu1, Yanjie Zhu1,2, Dong Liang1,2,3, and Hairong Zheng1,2
1Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences, Shenzhen, China, 2Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China, Shenzhen, China, 3Research Centre for Medical AI, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, China, Shenzhen, China

An optimization aimed at shortening pulse durations was carried out for three types of adiabatic spin-lock pulses by means of Bloch simulation. The variance of a part of the trajectory of Mz with respect to a range of off-resonance values was calculated to find the optimal pulse parameters and decent T1ρ-weighted imaging and T1ρ mapping results were obtained.

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