Segmented simultaneous multi-slice diffusion weighted imaging with generalized trajectories
| Autor: | Thomas Ernst, Weiran Deng, Michael Herbst, V. Andrew Stenger |
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| Rok vydání: | 2016 |
| Předmět: |
medicine.diagnostic_test
Computer science business.industry Phase (waves) Magnetic resonance imaging Multi slice 030218 nuclear medicine & medical imaging law.invention 03 medical and health sciences 0302 clinical medicine Aliasing Electromagnetic coil law medicine Radiology Nuclear Medicine and imaging Cartesian coordinate system Computer vision Artificial intelligence business 030217 neurology & neurosurgery Spiral Diffusion MRI |
| Zdroj: | Magnetic Resonance in Medicine. 78:1476-1481 |
| ISSN: | 0740-3194 |
| Popis: | Purpose The purpose of this work is to develop and evaluate a single framework for the use of Cartesian and non-Cartesian segmented trajectories for rapid and robust simultaneous multislice (SMS) diffusion weighted imaging (DWI) at 3 Telsa (T). Methods A generalized SMS approach with intrinsic phase navigation using Multiplexed Sensitivity Encoding (MUSE) was developed. Segmented blipped-controlled aliasing in parallel imaging echo planar imaging (EPI) and z-gradient modulated spiral trajectories were examined using SMS DWI scans at 3T with a 32-channel head coil. Results The generalized SMS MUSE reconstruction framework was successful in significantly reducing artifacts for all trajectories. A DWI brain volume with a 67.5-mm height, 1.5-mm isotropic resolution, and 90 diffusion weightings was obtained in a scan time of 6 minutes. Conclusion The MUSE technique can be generalized to allow for reconstruction of both Cartesian and non-Cartesian segmented trajectories. Magn Reson Med 78:1476–1481, 2017. © 2016 International Society for Magnetic Resonance in Medicine. |
| Databáze: | OpenAIRE |
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