Keywords: AI/ML Image Reconstruction, AI/ML Image Reconstruction, IVIM, 3D-DWI, multi-shot, DL
Motivation: The low clinical feasibility of time-consuming multi-shot interleaved acquisitions for IVIM-DWI.
Goal(s): To achieve effective and efficient image reconstruction and biomarker estimation from highly-accelerated four-shot IVIM-DWI data in the brain.
Approach: An end-to-end deep learning (DL)-based joint image reconstruction and biomarker estimation framework was proposed for highly-accelerated IVIM-DWI. It consists of a fully-supervised multi-b-value joint extraction and reconstruction module, and a self-supervised physics-informed estimation module.
Results: Our framework permits high-quality reconstruction of IVIM-DWI and estimation of biomarker maps with minimized residual artifacts, improved geometric fidelity and a significant reduction of acquisition time, surpassing other conventional reconstruction methods.
Impact: Our proposed DL-based technique is capable of precisely reconstructing IVIM-DWI and producing IVIM-related biomarker maps within a clinically feasible acquisition time, potentially improving the quantitative evaluation and analysis of IVIM-DWI-based assessment of cerebrovascular disease.
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