Coil sensitivity of a receive coil to a gradient null location is measured
and, from the measurements, a coil calibration value is determined and
used to modify the MR data acquired with that receive coil to reduce the
adverse effects of gradient nulling on MR images. Coil sensitivity values
are determined for each coil of a coil array and the data for each coil
is respectively weighted. An image that is substantially free of gradient
null artifacts or ghosting is then reconstructed from the weighted data.