GRAPPA reconstruction with reduced g-factor noise using 2 D CAIPIRINHA for 3 D EPI

different Δ shifts (A=0, B=3, C=2) in the slice encode direction for one sampling row Ky to the next. Corresponding k-space sampling patterns are also shown. All points belonging to a particular segment are acquired during a single readout echo train. Missing k-space points are empty squares whereas filled squares are acquired k-space points. Note that the length of the echo train is kept unchanged.