Highly accelerated cardiac cine parallel MRI using low-rank matrix completion and partial separability model

Highly accelerated cardiac cine parallel MRI using low-rank matrix completion and partial separability model
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使用低秩矩阵完成和部分可分离模型的高度加速心脏电影并行 MRI

DOI:
10.1117/12.2225490
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发表时间:
2016
期刊:
SPIE Proceedings
影响因子:
--
通讯作者:
Ying, Leslie
Ying, Leslie
中科院分区:
--
文献类型:
--
作者:
Ahmad, Fauzia;Lyu, Jingyuan;Nakarmi, Ukash;Zhang, Chaoyi;Ying, Leslie

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相似文献

本文提出了一种新的方法,高加速动态并行MRI使用低秩矩阵完成,部分可分离性(PS)模型。在数据采集中,对于每个时间帧,k空间数据在中心k空间导航器位置处被适度随机欠采样,但是在外部k空间处被高度欠采样。在重建中,使用结构化低秩矩阵完成从欠采样数据重建导航数据。在估计所有未采集的导航数据之后,使用部分可分离模型来获得部分kt数据。然后采用并行成像方法从欠采样数据中获取完整的动态图像序列。所提出的方法已被证明可以实现高质量的重建与减少因子高达31,和时间分辨率为29毫秒,当传统的PS方法失败。
This paper presents a new approach to highly accelerated dynamic parallel MRI using low rank matrix completion, partial separability (PS) model. In data acquisition, k-space data is moderately randomly undersampled at the center k-space navigator locations, but highly undersampled at the outer k-space for each temporal frame. In reconstruction, the navigator data is reconstructed from undersampled data using structured low-rank matrix completion. After all the unacquired navigator data is estimated, the partial separable model is used to obtain partial kt data. Then the parallel imaging method is used to acquire the entire dynamic image series from highly undersampled data. The proposed method has shown to achieve high quality reconstructions with reduction factors up to 31, and temporal resolution of 29ms, when the conventional PS method fails.
DOI: --
发表时间: 2006
期刊: --
影响因子: --
作者:
M. Lustig;Juan M. Santos;D. Donoho;J. Pauly
通讯作者: M. Lustig;Juan M. Santos;D. Donoho;J. Pauly
DOI: 10.1016/j.mri.2010.03.001
发表时间: 2010-06
影响因子: 2.5
作者:
Chen, Liyong;Schabel, Matthias C.;DiBella, Edward V. R.
通讯作者: DiBella, Edward V. R.