Meeting Banner
Abstract #4503

Artifacts-Free Multi-Shot Liver Diffusion Weighted Imaging with Phase Constrained Reconstruction

Mingyang Han1, Qingrui Cai1, Lyu Li2, Ruibo Song2, Yu Wang2, Xianwang Jiang2, Qin Xu2, and Xiaobo Qu1
1Department of Electronic Science, Xiamen University, Xiamen, China, 2Shanghai Neusoft Medical Technology Co.Ltd, Shanghai, China

Synopsis

Keywords: DWI/DTI/DKI, DWI/DTI/DKI

Motivation: State-of-the-art navigation-free methods encounter problems such as difficulty in removing motion artifacts and excessive noise in liver diffusion-weighted imaging (DWI) reconstruction.

Goal(s): To propose a rapid and high-resolution reconstruction method that can eliminate motion artifact effectively for liver multi-shot DWI.

Approach: We provide a one-dimensional low-rank reconstruction algorithm based on k-space separation guided reconstruction for high-resolution liver multi-shot DWI.

Results: ONe-dimensional mIxed-domain low-rank Constrained recoverY (NICY) extends one-dimensional low-rank constraint to a two-dimensional image reconstruction framework, not only significantly reduces the adverse effects of liver motion on imaging quality, effectively eliminating the resulting artifacts, but also enhances the image’s SNR.

Impact: The propose method can eliminate motion artifacts and improve the SNR of reconstructed images. The successful application of this method is expected to enable liver DWI to play a greater role in early diagnosis and efficacy evaluation of clinical diseases.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords