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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Magn Reson Med. 2014 Apr 18;73(3):1065–1074. doi: 10.1002/mrm.25221

Fig 5. Reconstructed T2 maps in healthy human brain.

Fig 5

The pink rectangle in the top-left fully sampled image (a) denotes the ROI used to measure RMS error. Note the asymmetry and systematic overestimation of T2 in Fourier-reconstructed EP protocols (c, e) as well as the edge enhancement and ghosting artifacts visible in the Fourier-reconstructed VT protocols (d,f). All accelerated methods used 1/6.6th of the full dataset (NT = 16); data fit to the exponential model was acquired with a prescribed refocusing flip angle of 180° and was compared to a fully sampled dataset at that flip angle. All other images were derived from data acquired using a prescribed flip angle of 120°.