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Abstract #3185

Evaluation of Wave-CAIPI for accelerating MP2RAGE and FLAWS in deep-brain nucleus localization

Cuiliu Liu1, Shuyue Wang1, Yunzhu Wu2, Daniel N. Splitthoff3, Wei-Ching Lo4, Peiyu Hang1, and Jianzhong Sun1
1Department of Radiology, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China, 2MR Research Collaboration Team, Siemens Healthineers Ltd., Shanghai, China, 3Siemens Healthcare, Erlangen, Germany, 4Siemens Medical Solutions, Boston, MA, United States

Synopsis

Keywords: Data Acquisition, Neuro

Motivation: High-resolution 3D MRI is essential for localizing deep-brain structures in patients with Parkinson’s disease; however, accurately identifying these small, low-contrast structures is challenging.

Goal(s): To evaluate whether the Wave-CAIPI method considerably reduces MP2RAGE-FLAWS scan duration while maintaining detailed visualization.

Approach: MP2RAGE sequence and Wave-CAIPI protocols with various acceleration factors were compared. The image quality was assessed subjectively and objectively, considering the key brain regions.

Results: Wave-CAIPI achieved substantial time reductions while preserving tissue contrast. The acceleration factors 2x2 and 2x3 provided adequate image quality, demonstrating that faster acquisition is feasible without losing critical details.

Impact: The Wave-CAIPI 2x2 and 2x3 protocols markedly enhanced MRI efficiency, improving patient comfort and accessibility while maintaining high-resolution imaging essential for accurate deep-brain structure visualization in clinical practice.

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Keywords