SAR-Efficient Sub-Volume Imaging Using Nonlinear Gradient Magnetic Fields
Emre Kopanoglu, Ergin Atalar, R. Todd Constable · 2026
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Description
Curved magnetic fields could let MRI scanners image just the region that matters, Emre Kopanoglu and colleagues propose in a 2026 methods study. Nonlinear gradients encode space along two directions at once, so standard slice pulses can excite rounded sub-volumes directly. The team worked out the smallest field of view a study must encode and tested a Z2 harmonic field in simulations and phantom scans.
Against one-dimensional slice selection, scan time fell while tissue heating, measured as SAR, stayed unchanged. Against two-dimensional selective pulses, the method won on SAR, echo time, and scan time together. Faster reduced-volume imaging without exotic pulses is the practical promise for SAR-limited sequences.
Catalog record
| CREATOR | Emre Kopanoglu, Ergin Atalar, R. Todd Constable |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 42381 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |