Figure 6

Experimental, fit, and simulated IFs. (A to E) Experimental IF (black), tri-exponential fit according to Equations 6 and 7 (yellow), simulation 10-s bolus injection (blue), simulation 300-s constant infusion (red), simulation 900-s constant infusion (green) for scans V1131 (A), V1132 (B), V1134 (C), V1135 (D), and V1136 (E). (F) Residuals between experimental IF and fit function in black and between simulated IF (300-s infusion) with and without noise in red (scan V1131). Arrows in (A) indicate the duration of the infusions.