Gradient waveform design method for mute diffusion-weighted magnetic resonance imaging sequence

The invention discloses a gradient waveform design method for a mute diffusion-weighted magnetic resonance imaging sequence. The method comprises the steps of firstly obtaining a frequency response function of a magnetic resonance system through experimental measurement; then, constructing a noise s...

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Bibliographic Details
Main Authors KANG LIYI, CHEN XINGZHOU, WU DAN
Format Patent
LanguageChinese
English
Published 16.08.2024
Subjects
CALCULATING
COMPUTING
COUNTING
DIAGNOSIS
ELECTRIC DIGITAL DATA PROCESSING
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
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Summary:The invention discloses a gradient waveform design method for a mute diffusion-weighted magnetic resonance imaging sequence. The method comprises the steps of firstly obtaining a frequency response function of a magnetic resonance system through experimental measurement; then, constructing a noise sound pressure level prediction module based on the measured frequency response function, and constructing an optimization initial waveform generation module according to a gradient waveform object needing to be optimized; a multi-constraint optimization problem is established by taking a predicted noise A weighted sound pressure level corresponding to a minimized gradient waveform as an optimization target and taking hardware limitation, a waveform shape, a gradient moment and a diffusion weighted b value as constraints; and finally, solving the optimization problem by utilizing a certain constraint optimization solving algorithm to obtain a mute sequence gradient waveform. The gradient waveform optimized by the me
Bibliography:Application Number: CN202410574643