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. 2020 Feb;61(2):276–284. doi: 10.2967/jnumed.119.229567

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© 2020 by the Society of Nuclear Medicine and Molecular Imaging.

Immediate Open Access: Creative Commons Attribution 4.0 International License (CC BY) allows users to share and adapt with attribution, excluding materials credited to previous publications. License: https://creativecommons.org/licenses/by/4.0/. Details: http://jnm.snmjournals.org/site/misc/permission.xhtml.

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FIGURE 4. — Comparison of IDIFs using AUCs. (A) Individual absolute percentage differences in AUCs for CT-IDIF and pCT-IDIF against AIF. Shaded areas indicate test-retest results for same subject. Broken lines represent mean difference over all scans between AUCs derived using AIF and CT-IDIF (orange) and those derived using AIF and pCT-IDIF (green). (B) Plot of absolute percentage differences in AUCs for AIF and IDIFs (CT-IDIF and pCT-IDIF). Shaded area enclosing box plot indicates probability density distribution for absolute percentage differences. Average absolute percentage difference for both methods was <5% (shown above graph).