Fig. 2From: Sexual dysfunction among men with diabetes; a cross-sectional study at a specialised diabetes clinic in Sri LankaLongitudinal images acquired during penile Colour Doppler ultrasonography in two participants. Normal waveform with peak systolic velocity > 35 cm/s during the tumescent phase (A) in a participant without arterial insufficiency compared to a participant with peak systolic velocity < 25 cm/s (B)Back to article page