Monique Tourell1,2, Jin Jin2,3, Ashley Stewart1,2, Saskia Bollmann1, Steffen Bollmann1,2,4, Simon Robinson1,5,6, Kieran O'Brien2,3, and Markus Barth1,2,4
1Centre for Advanced Imaging, University of Queensland, Brisbane, Australia, 2ARC Training Centre for Innovation in Biomedical Imaging Technology, University of Queensland, Brisbane, Australia, 3Siemens Healthcare Pty Ltd, Brisbane, Australia, 4School of Information Technology and Electrical Engineering, University of Queensland, Brisbane, Australia, 5High Field Magnetic Resonance Centre, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria, 6Department of Neurology, Medical University of Graz, Graz, Austria
1Centre for Advanced Imaging, University of Queensland, Brisbane, Australia, 2ARC Training Centre for Innovation in Biomedical Imaging Technology, University of Queensland, Brisbane, Australia, 3Siemens Healthcare Pty Ltd, Brisbane, Australia, 4School of Information Technology and Electrical Engineering, University of Queensland, Brisbane, Australia, 5High Field Magnetic Resonance Centre, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria, 6Department of Neurology, Medical University of Graz, Graz, Austria
The multi-shot 3D-EPI sequence with 2D CAIPIRINHA acceleration presented here
produced high-quality susceptibility maps at 3 T with minimal blurring and
distortion at 0.8 mm and 0.65 mm isotropic resolution in 57 and 87 seconds,
respectively.
Figure 3.
Top Row: Susceptibility maps with 0.65 mm isotropic resolution for the 3D-GRE
acquisition (left column) and 3D-EPI acquisitions with different acceleration
factors (right three columns). Enlarged regions for each map are shown in the
bottom two rows.
Figure
1. Axial, sagittal and coronal 3D-EPI images, taken with no parallel imaging
(PAT) and at 0.65 mm isotropic resolution. Yellow lines are the outline of the
corresponding 0.65 mm isotropic 3D-GRE sequence, indicating low levels of
signal loss and minimal distortion.
