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Coagulation in blood is initiated when coagulation factor VII (FVII) binds to exposed TF and is activated to FVIIa, and the TF/FVIIa complex may therefore provide a marker of vascular injury potentially applicable in diagnostic imaging of acute gastrointestinal (GI) bleeding. Methods: Recombinant FVIIa (rFVIIa) was radiolabeled with technetium‐99 m in a direct labeling reaction using the ‘carbonyl...