Introduction

Abstract

Over the last 20 years it is imaging that has become very important in Nuclear Medicine (2,157). Interest in the further development of non-imgaging techniques with single probes, which used to be employed exclusively before the invention of scanner and gamma camera, has receded into the background (36). In the case of computer-assisted dynamic scintigraphy, however, digital image sequences often only serve as aids for localizing ROIs (regions of interest) for the generation of time activity functions. The diagnostic interpretation of the study may take place less with the use of pictures than with the analysis of one-dimensional time-activity-histograms from ROIs. Signals of this kind can also often be obtained with much less effort and cost by means of single or multiple probes.