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. 2019 Sep 26;12:1756284819879047. doi: 10.1177/1756284819879047

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© The Author(s), 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Example of measuring the percentage change in liver fat fraction with MRI-PDFF. A 45-year-old male with moderate-to-severe steatosis was treated with orlistat. (a) Pretreatment MRI-PDFF demonstrated a total liver fat fraction of 29.4%. (b) The 6-month follow-up MRI-PDFF imaging exhibited a 21.2% decrease in the liver fat content of the total segments of liver (total liver fat fraction of 8.2%). (c) A pretreatment MRI-PDFF map. (d) A 6-month follow-up MRI-PDFF imaging map, placing ROIs centrally in all liver segments for the same patient.

MRI-PDFF, magnetic resonance imaging-derived proton density fat fraction; ROI, region of interest.