Since Collins et al. first reported in 1963 that orthoiodohyppurate is
taken up by the parenchyma, much progress has been made in isotope te
chniques. Advances have been mad in the performance of the gamma camer
as and the associated data processing. A major step was the introducti
on of tracers for studying renal function. More than an imagery techni
que, scintigraphy is a means of explorating of organ function. Its non
-invasiveness and the low patient irradiation allow for repeated use,
especially for long term follow ups. It is therefore important to prec
isely define the role of scintigraphic techniques in the follow up of
renal transplantations in coordination with other techniques including
echography.