Accumulation of radiolabelled platelets and fibrin on the carotid artery of rabbits after angioplasty: effects of heparin and dipyridamole.

We investigated the dynamic accumulation of platelets and fibrin after balloon injury of the carotid arteries in rabbits in vivo. In addition, effects of heparin and dipyridamole treatment were also tested. Autologous (99m)Tc-labelled platelet and (123)I-labelled fibrin accumulation was measured at one minute intervals for 4 hours following balloon injury of the carotid artery.