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METHOD AND SYSTEM FOR FAST IMAGE RECONSTRUCTION MRT FROM NEDOSEMPLIROVANNYKh DATA 发明申请

2023-02-17 4840 238K 0

专利信息

申请日期 2025-07-10 申请号 RU2014117696
公开(公告)号 RU2014117696A 公开(公告)日 2015-11-10
公开国别 RU 申请人省市代码 全国
申请人 САМСУНГ ЭЛЕКТРОНИКС КО ЛТД
简介 Provided is a magnetic resonance imaging (MRI) apparatus including an acquisition unit configured to acquire an undersampled spectrum in a k-space and a reconstruction unit configured to generate a target image based on the undersampled spectrum, wherein the reconstruction unit includes : a first sub-reconstruction unit configured to perform initial reconstruction on data corresponding to unsampled positions in the k-space by using a Split Bregman algorithm or approximate sparse coding; a second sub-reconstruction unit configured to decompose the initially reconstructed spectrum in the k-space into multiple frequency bands to thereby generate a plurality of individual spectra and perform dictionary learning reconstruction on images respectively corresponding to the decomposed multiple frequency bands by alternating sparse approximation and reconstructing of measured frequencies; and an image generator configured to generate a target image by merging together the reconstructed images respectively corresponding to the multiple frequency bands.


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