Figure 4 | Scientific Reports

Figure 4

From: Dual-energy computed tomography as a lower radiation dose alternative to perfusion computed tomography in tumor viability assessment

Figure 4

(A) CT scan displaying a circular ROI manually placed on the TU with average value of 24.3 HU. (B) BF 73.27 ml/100 g/min presents the mean flow rate through vasculature in the ROI tissue region of the TU. ROI 1 (purple color) represents the aorta, ROI 2 (green) denotes the tumor cross-section. (C) BV 9.73 ml/100 g presents the mean volume of flowing blood within a vasculature of the tissue region. (D) Contrast enhancement DECT reconstruction performed with Color maps French software on GE healthcare Workstation 4.7. (E) Tmax 11.08 s represents the delayed arrival of contrast bolus. (F) PS 68.59 ml/100 g/min denotes the total flux from the plasma to the interstitial space. CTP perfusion computed tomography, ROI region of interest, TU tumor, BV blood volume, BF blood flow, Tmax the time to the maximum of the residue function.

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