METHOD AND APPARATUS FOR ANALYTICAL OPTIMIZATION OF WAVE-CAIPI MAGNETIC RESONANCE IMAGING PARAMETERS, AND MEDIUM

WIPO Patent Application WO/2019/153658

A1

The present invention relates to the technical field of magnetic resonance imaging, and discloses a method and apparatus for analytical optimization of Wave-CAIPI magnetic resonance imaging parameters, and a medium. According to the parameter optimization method, imaging sequence parameters, i.e., a relative amplitude a and a period c, are automatically optimized, wherein according to an optimization algorithm of the parameters, i.e., the relative amplitude a and the period c, a gradient descent method is used for updating the relative amplitude a and the period c of a sinusoidal gradient field. According to the method, the influence of Wave-CAIPI magnetic resonance imaging sequence parameters (relative amplitude a and period c) on a g-factor is analyzed from theoretical and simulation aspects; parameter optimization is performed on the Wave-CAIPI magnetic resonance imaging technology in the prior art, such that the optimized parameters (relative amplitude a and period c) can achieve the smaller g-factor than empirically selected parameters (relative amplitude a and period c), thereby obtaining a reconstructed image with a higher signal-noise ratio.

WANG HAIFENG (CN)
QIU ZHILANG (CN)
LIANG DONG (CN)
SU SHI (CN)
LIU XIN (CN)
ZHENG HAIRONG (CN)

PCT/CN2018/096778

August 15, 2019

July 24, 2018

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SHENZHEN INST ADV TECH (CN)

G01R33/54

US20130099784A1	2013-04-25
CN102973271A	2013-03-20
US20170328971A1	2017-11-16
CN104714199A	2015-06-17
CN107049316A	2017-08-18
CN105662357A	2016-06-15

SYNCLAW ATTORNEYS (CN)

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