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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: Magn Reson Imaging. 2017 Sep 27;45:66–71. doi: 10.1016/j.mri.2017.09.010

Figure 2.

Figure 2

Illustration of modifying a pAIF to incorporate the individual variation. (A) A pAIF (same with sAIF in Fig. 1A) and an individual AIF (iAIF) having 50% higher cardiac output and 20% lower blood volume than the average with random error (10% in average) (CO +50%; BV −20%; 10% error). The pAIF and iAIF are indicated with a solid line and circular dots, respectively. (B) pAIF scaled in time to match its FWHM with that of iAIF. FWHM is indicated with two dotted vertical lines. (C) Time and amplitude scaled pAIF fitting into the iAIF.