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Abstract #1843

Comparative Analysis of GRAPPA and SMS Acceleration Methods in Multidimensional Diffusion-Relaxation Correlation MRI

Leqing Zhou1, Pak Shing Kenneth Or2, Qiji Shi1, Qiong Zhang3, Dehe Weng3, Xianchang Zhang4, and Fangrong Zong1
1Artificial intelligence college, Beijing University of Posts and Telecommunications, Beijing, China, 2Physical Chemistry, Lund University, Lund, Sweden, 3Digital, Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China, 4MR Research Collaboration, Siemens Healthineers Ltd., Beijing, China

Synopsis

Keywords: Parallel Imaging, Parallel Imaging, Comparative Analysis

Motivation: Due to the long acquisition times and the susceptibility of results to noise, multidimensional diffusion-relaxation correlation MRI (MD-MRI) necessitates stable and efficient acceleration method.

Goal(s): This study investigates the efficacy of MD-MRI using different acceleration techniques.

Approach: We employed SMS and GRAPPA parallel imaging methods, comparing their performance across various acceleration factors.

Results: Results indicate that SMS significantly improves diffusion metrics contrast, while GRAPPA excels in mean R1 contrast due to its longer TR settings.

Impact: This study investigates the influence of SMS and GRAPPA acceleration techniques in MD-MRI, providing a reference to find a balance between acquisition time and inversion result quality.

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