Fig. 5.

An example of vascular territories of the main brain-feeding arteries following VEPCASL. a: No offsets in the labeling plane, b: offsets, uncorrected in the encoding and c: offsets corrected in the encoding. d: Field map of the labeling plane after shim adjustments to generate phase offsets. e: Mean SNR ±standard deviation of the vessel-specific blood signal across all subjects. Signal loss and poor vessel-decoding are observed when phase offsets are present, but these are recovered through the use of the proposed method. Color represents the arterial origin of the blood signal, as shown in the legend. *P ​< ​0.05.