Meeting Banner
Abstract #3983

Cine Cardiac MR Super-resolution using a Fast Diffusion Model with Motion Guided Temporal Consistency Enforcement

Hanxi Liao1,2, Chun Liu1,2, Qinfang Miao1,2, Peng Hu1,2, and Haikun Qi1,2
1School of Biomedical Engineering & State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai, China, 2Shanghai Clinical Research and Trial Center, Shanghai, China

Synopsis

Keywords: AI Diffusion Models, Analysis/Processing

Motivation: Cine cardiac MRI (CMR) requires multiple breath-holds to cover the left ventricle. Acquiring images of small matrix size effectively reduces acquisition time but causes a loss of spatial details.

Goal(s): To accelerate cine CMR acquisition while maintaining high image quality and temporal consistency based on diffusion model.

Approach: A diffusion model with fast inter-frame motion-guided sampling is constructed to achieve super-resolution of cine CMR while suppressing potential inter-frame variations of generated dynamic images.

Results: The proposed method outperforms both the state-of-the-art GAN-based super-resolution method, ESRGAN, and the cutting-edge fast diffusion super-resolution model, ResShift for recovering high-frequency details in cine CMR.

Impact: The proposed method yielding good-quality cine cardiac MR image series from low-resolution images enables accelerated cine cardiac MR acquisition, and could be potentially applied to achieve high spatial-temporal real-time cardiac MRI.

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