Laterally Oscillating Trajectory for Undersampling Slices: LOTUS
Mayuri Sothynathan, Paul I. Dubovan, Corey A. Baron · 2026
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Description
Sothynathan and colleagues present LOTUS, a spiral-style scanning path for diffusion MRI. Diffusion MRI tracks water movement to reveal the brain's fine structure. LOTUS images several brain slices at once to shorten long scans. Gathering many directions is slow, so imaging slices together, with aliasing kept in check, offers a way to speed things up.
In computer tests on a phantom, LOTUS cut the g-factor by 20 to 31 percent. The g-factor gauges how much noise grows when a scan is sped up. The comparison was against rival paths at the highest rate of skipped data. LOTUS also rebuilt images more faithfully on error and likeness measures in those tests. Brain scans from two volunteers, at two and four times the speed, showed the same pattern. Gains grew as more slices were combined. The authors say faster slice scanning could shorten diffusion exams in a real way.
Catalog record
| CREATOR | Mayuri Sothynathan, Paul I. Dubovan, Corey A. Baron |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 39 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |