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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Magn Reson Med. 2018 Aug 19;81(1):711–718. doi: 10.1002/mrm.27436

Figure 3.

Figure 3

ADC maps of a phantom from scans with high and low SNR, with (λ = 0.01, 0.05, 0.1) and without (λ = 0) regularization, and with regular Gaussian filtering with a filter standard deviation of σf = 1. The regularized maps with high SNR retain most of the pattern that is seen without regularization, but this is not the case for the Gaussian filtered map. The mean μ and standard deviation σ for the different smoothing approaches and SNR values are shown in each figure panel, with units of μm2/ms. The yellow labels refer to values across the whole phantom, while the white labels refer to values measured across a relatively uniform ROI within the phantom (dashed white circle).