Abstract #3517

eIRIS — An Eigen-Analysis Motivated Approach for More Robust Multi-Shot Diffusion-Weighted Imaging

Li Guo¹, Zhongbiao Xu¹, Yingjie Mei^1,2, Wenxing Fang³, Chenguang Zhao³, Wufan Chen¹, Yanqiu Feng¹, and Feng Huang⁴

¹Guangdong Provincial Key Laborary of Medical Image Processing, School of Biomedical Engineering, Southern Medical University, Guangzhou, People's Republic of China, ²Philips Healthcare, Guangzhou, People's Republic of China, ³Philips Healthcare (Suzhou), Suzhou, People's Republic of China, ⁴Neusoft Medical System, Shanghai, People's Republic of China

IRIS corrects the motion-induced inter-shot phase errors for multi-shot diffusion-weighted imaging by extracting the phase information from an additional navigator data, which may cause the distortion mismatch between the image and navigator data. To solve the distortion mismatch issue in IRIS without using B0 field map, we propose to extract the coil sensitivities and phase information from navigator data by using an eigen-analysis scheme. The performance of the proposed method is demonstrated in both phantom and in vivo data sets.

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.