A
turbo spin echo based sequence for robust and fast diffusion imaging is
proposed. It overcomes the non-CPMG problem by split-echo acquisition of turbo
spin echo signals. EPI-like readout is used to sample the separated echoes and generate
multiple blades for a single k-space. Each blade was corrected for both the
inherent phase of separated echoes and off-resonance phase, to avoid the
destructive inference. With this technique, the non-CPMG problem can be
effectively mitigated at low flip angle refocusing pulses to reduce SAR.
Moreover, the off-resonance artifacts can also be reduced especially when high
acceleration factor is applied.
