Figure 4

Illustration of the function that represents the time-intensity curve of the renal ultrasound contrast study after the application of ultrasonographic contrast (time 0). Parameters: peak contrast enhancement (CortPeak and MedPeak in %), time for cortical peak (CortTP in s), mean transmission time (MtT in s), area under the curve (CortAUC and MedAUC), slope of cortical input curve (Cort(a) in %/s), and the output curve (Cort(b) in %/s).