Typical images of medial vascular calcifications type Mönckeberg acquired by invasive imaging techniques. Intravascular ultrasound (A) and optical coherence tomography (B) cross-sectional images of a proximal superficial femoral artery are shown. On the intravascular ultrasound image dense tunica media calcification (arrows), the absence of acoustic shadowing and freedom from intimal atherosclerotic disease is demonstrated (Eagle Eye catheter, Volcano, 20 MHz, lateral resolution 200–250 µ, axial resolution 80–100 µ). On the optical coherence tomography image, the circumferential layer of medial calcifications (arrows) is documented. The intraluminal prolapsing fibrotic plaque is also seen (yellow arrows); §OCT catheter, *0.0.14 inch guidewire (Akquise, St Jude Medical, C7 Dragonfly catheter, lateral resolution 20 µ, axial resolution 10 µ).