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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Radiology. 2014 Oct 15;275(1):245–254. doi: 10.1148/radiol.14140973

Figure 1.

Figure 1

Sampling and reconstruction strategy for accelerated spiral 4D flow phase contrast imaging. A) Undersampled variable density spiral trajectory. B) Cardiac triggered acquisition. Random rotations were applied to the trajectory for each dynamic frame (velocity encodings and cardiac phases). C) Compressed sensing reconstruction pipeline. The coil sensitivity map was derived from the acquired data itself and inserted in the SPARSE-SENSE encoding operator.