fn qsmart_fit(
unwrapped: &[Vec<f64>],
mag_slices: &[&[f64]],
valid_mask: &[u8],
metadata: &ScanMetadata,
fit_threshold: QsmartFitThreshold,
) -> FieldMappingResultExpand description
B0EstimationMethod::QsmartEchofit on unwrapped echoes: QSMART’s echofit.m
(qsmart_echofit) with QSMART’s γ, giving the total field
over every voxel and the reliability map R_0.