Extended Data Fig. 2: Phantom to demonstrate Lac/lipid separation. | Nature Biomedical Engineering

Extended Data Fig. 2: Phantom to demonstrate Lac/lipid separation.

From: Ultrafast J-resolved magnetic resonance spectroscopic imaging for high-resolution metabolic brain imaging

Extended Data Fig. 2

a, Structure of the Lac/lipid phantom, which is made of a commercial spectroscopic phantom with Lac, as well as a bag of vegetable oil attached to it to mimic the subcutaneous lipid in human data. b, Original map before water and lipid removal, showing the unsuppressed water and lipid signals. c, Estimated lipid signals using the proposed method. d, Lac map obtained using the proposed method. e, Localized FID spectra from the yellow voxel indicated in the image in b. No noticeable lipid artifacts could be observed in the Lac map and localized spectra. f-h, Lipid signals, Lac map and localized spectra similar to c-e, but obtained with lower spatial resolution. Substantial lipid leakage was observed in the low-resolution data. Abbreviations: Lac, lactate; FID, free induction decay; a.u., arbitrary unit.

Back to article page