Abstract #1916

Reconstruction of Highly Underdamped 3D Spiral and Golden Angle Radial MRI Data Using Spherical Fourier-Legendre Transform

Mojtaba Shafiekhani¹, Vahid Ghodrati², and Abbas Nasiraei Moghaddam³

¹Department of Radiology, Division of Medical Physics, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany, ²Department of Radiological Sciences, University of California Los Angeles, Los Angeles, CA, United States, ³Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran (Islamic Republic of)

Synopsis

Keywords: Image Reconstruction, Image Reconstruction

Motivation: Fast imaging is crucial in MRI for various applications. This study proposes a novel method to reconstruct highly undersampled MRI data for faster and higher-quality imaging.

Goal(s): Reconstruct the highly undersampled 3D golden-angle and spiral radial MRI data.

Approach: We proposed a novel image reconstruction method for 3D radial MRI data at high acceleration rates, based on the spherical Fourier-Legendre transform. This method reconstructs images directly in the spherical coordinates without using interpolation operator in k-space domain.

Results: The feasibility of the proposed method is proven by reconstructing highly undersampled 3D golden-angle and spiral radial data of digital Shepp-Logan and in-vitro ACR phantoms.

Impact: A nivel image reconstruction method for fast and high-quality radial MRI imaging. It focuses on highly undersampled 3D golden-angle and spiral radial MRI data, reconstructing images directly in spherical coordinates without any frequency interpolation.

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