C.D. Becker – författare

From 1944-1971, the Hanford Reach of the Colombia River in Washington State received quantities of radioisotopes, heat and chemicals from up to 8 plutonium reactors. Subsequently, from 1971-1984 the same part of the river provided cooling water for 3 power-production facilities.Environmental concerns promoted a series of continuing studies to examine various potential adverse effects. No significant impairment of the rivers ecosystem was detected.This book reviews these studies and places them in a historical framework.It provides a unique overview of studies made over a 40-year period which are now scattered through various published and unpublished documents.It should be of interest to all those concerned with aquatic ecology and environmental concerns.

The advent of spiral CT has brought about a major breakthrough in abdominal imaging. This volume, written by US and European experts in the field, is designed to provide detailed information on all pertinent aspects of the technique. Introductory chapters examine image acquisition and processing, but the main focus is on clinical applications. The key pathologies of each abdominal organ system in which spiral CT has resulted in a major diagnostic improvement are discussed in depth and richly illustrated. Attention is paid to the choice of the parameters for imaging and automated contrast material injection, tailored to each specific organ and to the most common clinical conditions. The advantages and drawbacks of spiral CT are carefully appraised relative to other imaging modalities, particularly Doppler sonography and MRI. The concluding chapters are devoted to topics such as abdominal trauma, spiral CT in children, and CT-guided interventional procedures.