Repeatability and Image Quality of IDEAL-IQ in Human Lumbar Vertebrae for Fat and Iron Quantification across Acquisition Parameters

Figure 1

Image quality assessment and ROI delineation strategy. (a) FF and (b) (R2), 77 years old, sequence 2, the border and internal structure of vertebrae were perfectly displayed, scored 5 points. The schematic ROI of L3 was marked in blue and the contrast ROI in red. (c) FF and (d) R2, 33 years, sequence 5, most site of the border and internal structure of vertebrae could hardly be distinguished, scored 1 point. (e) FF and (f) R2, 46 years, sequence 3, a complete fat-water swap could be observed, with all regions of the FF map being disturbed. (g) FF and (h) R2, 53 years, sequence 6, a partial fat-water swap was observed, with some area of the FF map being disturbed.

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