Abstract
The antithrombogenicity was tested by the superior vena cava indwelling method, using Ga-67-fibrinogen and In-111-tropo-lone-platelets. Ga-67-fibrinogen facilitated greater accuracy in the assessment of thrombus formation on the test sample than did In-111-tropolone-platelets. The accumulation of platelets and fibrinogen in the major organs was always to increase as a results of indwelling foreign material. These results showed that it is important to inves-tigate the thrombus formed both on the specimens and major organs.
