[Radioisotopes used in the diagnosis of bone diseases]

The radiopharmacons produced in Hungary and suitable for the demonstration of reactive bone alterations are discussed by the authors. These pharmacons are the following: 85ScCl2=Strontiumchloride, 153Sm-EDTA=Samarium ethylendiamintetraacetate, 169Yb-citrate=Ytterbium-citrate, 99mTc-HEDSPA=Technetium-hydroxy-ethylene-diphosphonate, 99mTc-pyrophosphate. The scintigraphic pictures obtained by the use of these radiopharmacons are presented. On the basis of their experimental examinations the numerous advantages of the use of 99mTc-HEDSPA are pointed out and the possibilities are outlines, which are to be obtained in the detection of occult bone alterations, in the examination of juvenile patients and perhaps in the case of osteotransplantation.