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Abstract #4847

3D Pseudo-Continuous Arterial Spin Labeling Acquisition using a High-Performance Gradient System: A Scan Time and Image Quality Assessment

Afis Ajala1, Seung-Kyun Lee1, Daehun Kang2, Luca Marinelli1, Desmond Teck Beng Yeo1, and Thomas Foo1
1Magnetic Resonance Imaging, GE Global Research, Niskayuna, NY, United States, 2Mayo Clinic, Rochester, MN, United States


The maximum gradient amplitude (Gmax) and slew rate (SRmax) determine the minimum number of interleaves (and total scan time) in a 3D pseudo-continuous arterial spin-labeling (3DpCASL) acquisition with a stack-of-spirals readout module for a given spatial resolution. The higher Gmax and SRmax of a recently developed head-only gradient system (MAGNUS) was utilized to reduce the total scan time of a clinical 3DpCASL acquisition by a factor of 2 compared to a similar acquisition carried out at a lower Gmax and SRmax of a conventional whole-body system (CWBS) while maintaining comparable image quality.

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