Abstract #2297
Improving Image Quality of Hyperpolarized 129Xe MRI with 3D Radial Acquisition and Accurate K-Space Trajectory Measurements
Scott H Robertson 1,2 , Suryanarayanan S Kaushik 1,3 , Zackary L Cleveland 1,4 , Mu He 1 , Matthew S Freeman 1,2 , Rohan S Virgincar 1,3 , and Bastiaan Driehuys 1,4
1
Center for In Vivo Microscopy, Duke
University Medical Center, Durham, NC, United States,
2
Medical
Physics Graduate Program, Duke University, Durham, NC,
United States,
3
Department
of Biomedical Engineering, Duke University, Durham, NC,
United States,
4
Department
of Radiology, Duke University Medical Center, Durham,
NC, United States
The 3D Radial sequence has many advantages over 2D
multislice GRE, namely isotropic resolution,
insensitivity to diffusion, reduced signal decay
effects, and the potential for very short echo times.
Despite these advantages, however, 2D multislice GRE has
remained the preferred sequence for hyperpolarized lung
imaging. This study applies a k-space trajectory
measurement technique to a 3D radial sequence, making
the 3D radial image quality comparable to that of 2D
multislice GRE.
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