ABSTRACT
I. Introduction 41
II. Single Photon Emission Computed Tomography 43
III. Positron Emission Tomography 46
IV. Combined Systems 54
V. Conclusions 55
References 55
I. Introduction
The ever increasing popularity of small animal imaging with radio-tracers has
been made possible by recent technological progress in image resolution and
machine sensitivity (1). The ability to trace the spatial and temporal evolution
and distribution of radio-labeled molecules in appropriate animal models offers
researchers the opportunity to study disease progression, tumor growth, gene
expression, and pharmacokinetics of new drugs in new and valuable ways.
