Fig. 3
Scatterplots of radiation dose–effect relation for intima-media thickness (upper left), pulse wave velocity (upper right), and shear wave velocity in the different carotid segments (middle left to lower right). Differences in ultrasound parameters are plotted against differences in radiotherapy dose in the irradiated compared to the control side. IMT intima-media thickness, PWV pulse wave velocity, SWV shear wave velocity, BS begin-systolic, ES end-systolic, CCA common carotid artery, ICA internal carotid artery. 1One outlier is not shown with an IMT and dose difference of 0.36 mm and 1.9 Gy, respectively