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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Magn Reson Med. 2018 Oct 12;81(2):852–862. doi: 10.1002/mrm.27412

Figure 4.

Figure 4

Retrospective SMS reconstruction. The perfusion images in the top row are collected without SMS (i.e MB = 1) and reconstructed with L1-SPIRiT to serve as the “gold-standard”. The subsequent rows show images with simulated MB factors of 2 to 4 reconstructed using the proposed SMS-L1-SPIRiT pipeline. This reconstruction technique has minimal residual aliasing artifacts, even at MB = 4. The perfusion images simulated at MB 2 to 4 visually have image quality comparable to the ground truth MB 1 reconstruction.