The human venous system has, in the past, not alwaysattracted the same attention and interest from radiologists as the arterial system. Nevertheless, some of the pathologic conditions of the venous system are either frequently seen in daily practice such as varicosis of the lower extremity, or may relate to more severe and even life-threatening conditions,for instance deep venous thrombosis or liver venous pathology. However,enormous progress has been achieved during the past decade in the field of duplex and color Doppler imaging necessitating an update in our knowledge of these techniques. For both reasons, a volume specifically dealing with duplex and color Doppler ima ging of the venous system was considered an appropriate addition to the series Medical Radiology - Diagnostic Imaging. I would like to thank Prof. Mostbeck for his outstanding performance as the editor of this work. I would like to congratulate him and the many contributing authors, all renowned experts in the field, on their comprehensive coverage of the different topics, the up-to-date contents and the superb illustrations. I stronglybelievethat this bookwill encounter the same success as previous volumes published in this series.

1 Basic Principles and Physics of Duplex and Color Doppler Imaging

2 Venous Duplex Doppler and Color Doppler Imaging Techniques
3 Venous Hemodynamics and Normal Doppler Findings in the Venous System
4 Doppler Imaging of Jugular Vein and Thoracic Inlet Venous Obstruction
5 Doppler Imaging of Liver Veins
6 Doppler Imaging of Abdominal Veins
7 Quantitative Assessment of Splanchnic Venous Hemodynamics by Doppler Techniques
8 Doppler Imaging of TIPS
9 Doppler Imaging of Lower Extremity Deep Venous Thrombosis
10 Preoperative Assessment of Varicosis of the Lower Extremity by Doppler Techniques
11 Venous Color Duplex Sonography of the Scrotum
12 Influences of Cardiac Pathology on Doppler Findings in the Venous System
13 Pediatric Aspects of Doppler Imaging of the Venous System
Abbreviations
List of Contributors.