The application of radioactive labeled leucocytes for the proof of inflammations.

The methods we have tested are reliable for the labeling of granulocytes and monocytes as well as with colloidal substances and with soluble 99mTc-phytate. Supravital colorations and electronmicroscopic pictures do not show any damage of the cells caused by the labeling procedures. In the clinical application after the reinjection of the labeled granulocytes and monocytes, inflammations in the abdomen and in the bone could be proved and localized exactly. A final evaluation of the described methods and its differentiation from other diagnostic possibilities will only be possible after further investigations.