Extended Data Fig. 2: Standard B-mode ultrasound imaging.

Representative examples of transversal and longitudinal B-mode ultrasound imaging of quadriceps femoris muscles in a HV and in a patient with DMD. A representative result for a HV and a DMD from n = 160 independent muscle regions (n = 80 HV/n = 80 DMD) of n = 20 biologically independent subjects (n = 10 HV/n = 10 DMD patients) with similar results is shown. Scale bars, 1 cm.