Main window interface. In this example, a mouse brain tumor study is displayed: GL261 glioblastoma (see also the Results section). The main window interface is shown before the ROI has been selected. In the right side of the window, the RCE image is drawn with a “rainbow” color palette. The DCE-MRI image is drawn with “black & white” color palette in the central part. The Upper slides allow changing the current time frame and Z-slice. Other tabs, such as zoom options, ROI selection options, parametric selection and initial constants, are grouped in the left side of the main window interface.