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Table 1 Imaging parameters of modified REACT-non-CE-MRA and 4D CE-MRA. FOV = field of view. TR = repetition time. TE = echo time

From: Imaging of the pulmonary vasculature in congenital heart disease without gadolinium contrast: Intraindividual comparison of a novel Compressed SENSE accelerated 3D modified REACT with 4D contrast-enhanced magnetic resonance angiography

 REACT-non-CE-MRA4D CE-MRA
Acquisition matrix235 × 299 × 100268 × 268 × 25
Resolution [mm]1.7 × 1.7 × 1.71.5 × 1.5 × 4
FOV [mm]400 × 508 × 170400 × 400 × 100
Flip Angle [deg]1030
TR/TE1/TE2 [ms]6.3/1.8/42.8/1.05
T2 preperation [ms]30
k-space lines per heartbeat35
Acceleration factorCompressed SENSE 9SENSE 3
Temporal resolution1 s
Nominal scan time [min]02:11~ 0:24
SubtractionCE – native