Radiology Today 3 presents papers and panel discussions from a multi­ national faculty at the biannual Salzburg Symposium, which this time covered three important topics: critical diagnostic pathways in gastro" intestinal and genitourinary radiology, interventional radiology of the abdomen, and cost containment in radiology. The choice of these topics illustrates the changing role of the radiolo­ gist in the practice of medicine today and in the foreseeable future. He will have to serve as a consultant more than ever before, assuming in­ creasing responsibility for sequencing of imaging procedures and par­ ticipating more and more in therapeutic intervention. In order to pro­ vide meaningful assistance, the imaging consultant must be aware of the efficacy and the limitations of every procedure. In this context, cost containment is a worldwide public concern, and the most appropriate procedures must be identified. Radiology Today 3 demonstrates how the radiologist functions as a member of diagnostic and management teams to provide optimal in­ formation and efficient, low-risk patient care at the lowest possible cost. Martin W. Donner Friedrich H. W. Heuck Contents Critical Diagnostic Pathways Abdomen 3 G. MARCHAL, A L. BAERT, K. GEBOES, E. PONETTE, 1. FEVERY The Diagnosis of Pancreatic Cancer ............ 3 W. REICHARDT Localization Techniques for Hormonally Active Pancreatic Tumors ........... . 7 AR. MARGULIS, S. MCCARTHY Hepatic Mass Lesions .... 12 M. KORMANO, K. PARTANEN, 1. KUIKKA Dynamic Liver CT and New Contrast Agents ....... . 17 W. FROMMHOLD, J. PIRSCHEL 20 Gallbladder Diseases: Imaging Sequences 1.A KIRKPATRICK, Jr.

Critical Diagnostic Pathways.- Abdomen.- The Diagnosis of Pancreatic Cancer.- Localization Techniques for Hormonally Active Pancreatic Tumors.- Hepatic Mass Lesions.- Dynamic Liver CT and New Contrast Agents.- Gallbladder Diseases: Imaging Sequences.- Abdominal Masses in Children: Selection of Imaging Techniques.- Consensus on Imaging Pathways: Liver, Gallbladder, and Pancreas.- Septic Lesions of the Abdomen.- Percutaneous Drainage of Abdominal Abscesses and Fluid Collections.- Radiologic Investigation of the Postoperative Patient.- Diagnostic Pitfalls of Double-Contrast Gastrointestinal Studies and How to Avoid Them.- Genitourinary Tract.- Radiology of Renal Masses.- Diagnostic Approach to the Dysplastic Kidney.- Diagnostic Workup of Ureteral Obstruction in the CT Era.- Radiologic Management of Adult Traumatic Renal and Pelvic Hemorrhage.- Examinations of the Female Lower Urinary Tract and Ureter.- Evaluation of the Male Lower Urinary Tract.- Low-Osmolality Contrast in Urography.- Retroperitoneal and Pelvic Masses.- Retroperitoneal Masses.- Imaging of Adrenal Masses.- Diagnostic Approach to Parapelvic Masses.- Transrectal and Intrauterine Sonography of Gynecologic Neoplasms.- Interventional Radiology.- Gastrointestinal Tract.- Acute and Chronic Gastrointestinal Bleeding: Role of Angiographic Diagnosis and Management.- Hepatic Artery Infusion and Embolization in the Management of Hepatic Tumors.- Update on Percutaneous Gallstone Extraction and Stricture Dilatation.- Percutaneous Tissue Core Biopsy with the Tru-Cut Needle.- Genitourinary Tract.- New Developments in Caval Filters.- Present Workup of Renal Hypertension.- Percutaneous Transluminal Angioplasty in Renal Arteries.- Transcatheter Embolization of Renal Cell Carcinoma with 1-125 Particles.- Noninvasive RenalStone Therapy with Extracorporal Shock-Wave Lithotripsy.- Percutaneous Stone Removal.- Percutaneous Stone Litholapaxy and Extraction.- Miscellaneous.- The Effects of Digitization and Processing on Diagnostic Images.- Paramagnetic Contrast Media of the Present and the Future.- Problems of Progress in Radiology: Supplementary Informations.- Variations and Cost Containment in Radiology.- Cost Development in Uroradiology and Neuroradiology.- The Development of Algorithms for Radiologic Procedures: Avoidance of Duplication Through Education of Physicians.- New Advances in Diagnostic Imaging and Their Influence on the Practice of Radiology.- Promotion of Radiology in Nonindustrialized Countries.