FAMASITO

FAMASITO performs single-step B0 shimming for MRI by applying FASTMAP to quantify three-dimensional first- and second-order spherical harmonic B0 shapes from six one-dimensional column projections to improve magnetic field homogeneity.

Key Features:

• Single-step Optimization: Enables optimal single-step adjustment of first- and second-order spherical harmonic shim terms, with reported mean refinement of linear terms to less than 1%.
• Automated Calibration and Analysis: Implements automated calibration, analysis, and experiment execution routines to replace iterative manual adjustments.
• Integrated Software Components: Includes a FASTMAP pulse sequence and automated scripts to execute experiments and map B0 along projections.

Scientific Applications:

• MRI B0 Homogenization: Improves uniformity of the static magnetic field B0 in MRI scans to reduce susceptibility-induced artifacts.
• Neuroimaging — Prefrontal Cortex: Enables improved B0 homogeneity in challenging regions such as the adult human prefrontal cortex for neuroimaging studies.

Methodology:

Maps three-dimensional B0 field distortions onto six one-dimensional column projections to quantify first- and second-order spherical harmonic components and applies automated routines for calibration, analysis, and experiment execution while addressing FASTMAP pulse sequence implementation and shim hardware integration.