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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Magn Reson Med. 2014 Jul 17;73(6):2212–2224. doi: 10.1002/mrm.25364

Figure 7.

Figure 7

Transform PSF maps compare the incoherence across CS-SENSE, Radial, O-space, and pseudo-random CP O-space methods by computing the side-lobe-to-peak-ratio (SPR) value at different positions. A lower SPR value (blue) indicates greater incoherence. CS-SENSE shows noise amplification patterns. Radial imaging has greater spatial uniformity, as expected from using linear gradients, at the cost of a higher SPR for some regions. O-space has regions where interference accumulates due to regularity in the frequency encoding scheme. Pseudo-random O-space has the lowest SPR values in the center and overall.