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Abstract #1196

Enhance-then-Synthesize: A Deep Learning Acceleration Pipeline for Spinal MRI, Reducing Scan Time by 60%

Zhihao Zhang1, Jie Li2, Song Jiang2, Yi Xia2, Baiyang Jiang2, Long Wang1, Lei Xiang1, Li Fan2, and Shiyuan Liu2
1Subtle Medical Inc., Shanghai, China, 2Second Affiliated Hospital of Naval Medical University (Changzheng Hospital), Shanghai, China

Synopsis

Keywords: AI/ML Image Reconstruction, AI/ML Image Reconstruction, Image Synthesis

Motivation: The MRI spine protocol consists of multiple sequences for routine assessment but takes over 5 minutes, often resulting in inefficient, motion-affected image quality.

Goal(s): We proposed a deep learning(DL)-based pipeline that boosts speed by 60% and evaluated its impact on image quality and diagnostic performance.

Approach: Using DL-based image enhancement and generative algorithms, we generated four high-quality sequences from three low-quality fast scan sequences. These sequences were then compared to the SOC for image quality, similarity, and diagnostic consistency.

Results: The image quality of the DL-generated sequences surpasses that of the SOC, demonstrates diagnostic interchangeability, and reduces scan time by 60%.

Impact: The DL-based enhance-then-synthesize pipeline reduced the scanning time for spine MRI protocols up to 60%, while delivering image quality comparable to or higher than that of the standard scanning sequence. The generated sequences proved to be viable alternatives for diagnosis.

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