Short echo time CSI without outer-volume suppression at 7 T

Introduction: At high field, localisation methods such as PRESS suffer from chemical-shift artefacts and T2-dephasing. An alternative is a pulse-acquire sequence with CSI. However, poorly shimmed regions can cause artefacts through the pointspread-function. It has been shown that this sequence can be combined with SAR-demanding OVS[1] to suppress these signals. However, with high spatial resolution and a voxel of interest far from poorly shimmed regions, OVS may not be necessary. Low-SAR water and lipid suppression may be sufficient, enabling a substantially shorter TR. In this study we propose a low-SAR adiabat…