Abbildung 4: OCT
Two guide wires characterized by blocking incident OCT light, casting black shadows on the vessel wall, one is clean (green arrow), the other is surrounded by the a white thrombus (white dotted lines) with low attenuation beneath in a a shape of butterfly. OCT was in the therapeutic range. Different wire surfaces, insufficient wiping, and different indwelling times may explain why one wire stayed completely clean while the other is covered with fresh thrombus.