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Abstract #4510

Image-feature-understanding data consistency for under-sampled MRI reconstruction

Sha Wang1, Lijun Zhang1, Chunyao Wang1, and Zhenxi Zhang1
1Research and Development Center, Canon Medical Systems (China) Co., Ltd., Beijing, China

Synopsis

Keywords: AI/ML Image Reconstruction, Machine Learning/Artificial Intelligence

Motivation: The optimal selection of data consistency (DC) weight is task-dependent and a challenge in current deep learning unrolled reconstruction network which may result in compromised image quality, and thus deserves further investigations.

Goal(s): To propose a method to obtain adaptive data consistency weight which is superior to existing methods.

Approach: An image-feature-understanding data consistency (IFUDC) modulator is integrated into network to obtain adaptive DC weight based on input images.

Results: Image quality metrics (SSIM, PSNR) of proposed method are higher than those of existing method.

Impact: IFUDC is effective to modulate DC weight adaptively and helps to mitigate the difficulty in optimal DC weight selection.

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Keywords