Papers › Correlation-weighted 23Na magnetic resonance fingerprinting in the brain
Correlation-weighted 23Na magnetic resonance fingerprinting in the brain
Lauren F. O'Donnell, Gonzalo G. Rodriguez, Gregory Lemberskiy, Zidan Yu, Olga Dergachyova, Martijn Cloos, Guillaume Madelin
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
We developed a new sodium magnetic resonance fingerprinting (²³Na MRF) method for the simultaneous mapping of T₁, T_(2,long)^*, T_(2,short)^* and sodium density with built-in ΔB₁⁺ (radiofrequency transmission inhomogeneities) and Δf₀ corrections (frequency offsets). We based our ²³Na MRF implementation on a 3D FLORET sequence with 23 radiofrequency pulses. To capture the complex spin 3/2 dynamics of the ²³Na nucleus, the fingerprint dictionary was simulated using the irreducible spherical tensor operators formalism. The dictionary contained 831,512 entries covering a wide range of T₁, T_(2,long)^*, T_(2,short)^*, ΔB₁⁺ factor and Δf₀ parameters. Fingerprint matching was performed using the Pearson correlation and the resulting relaxation maps were weighted with a subset of the highest correlation coefficients corresponding to signal matches for each voxel. Our ²³Na MRF method was compared against reference methods in a 7-compartment phantom, and applied in brain in five healthy volunteers at 7 T. In phantoms, ²³Na MRF produced values comparable to those obtained with reference methods. Average sodium relaxation time values in cerebrospinal fluid, gray matter and white matter across five healthy volunteers were in good agreement with values previously reported in the literature.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections