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Abstract #2233

Synthesizing high-resolution brain MR T1-MPRage-like Images from low-dose CT

Yasheng Chen1, Chunwei Ying2, Tongyao Wang2, Andria Ford1, Jin-Moo Lee1, Rajat Dhar1, and Hongyu An2
1Neurology, Washington University School of Medicine, St. Louis, MO, United States, 2Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, United States

Synopsis

Keywords: Other AI/ML, Machine Learning/Artificial Intelligence, image conversion, MR to CT conversion, image synthesis

Motivation: Using deep learning to improve the soft tissue contrast in low-dose brain CT similar to MRI.

Goal(s): Converting low-dose brain CT to high-resolution T1-MPRAGE-like Images.

Approach: A ResUNet-based deep learning approach is developed to learn the complex transformation from low-dose brain CT to its corresponding T1-MPRAGE.

Results: With the proposed approach, we obtained high-resolution MR T1-MPRAGE-like images with superior soft-tissue contrasts from noisy low-dose brain CT images.

Impact: By transferring brain CT to T1-MPRAGE-like images, our approach provides superior soft tissue contrast from low-dose brain CT images. Our method would allow tissue-specific analysis using noisy non-contrast CT.

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Keywords