In this small volume experts provide succinct answers to freuqently asked questions about the properties and handling of X-ray contrast media. It is an excellent reference source for all using these agents. Basic information is given on the development, toxicology, pharmacology, pharmacokinetics and clinical testing of contrast agents and in question and answer form on the problems and adverse events which may be associated with them. Most of the book is concerned with the most frequently used iodinated X-ray agents but there are useful sections on the magnetic resonance and ultrasound echo enhancing agents which are assuming greater and increasing importance. This book will be of interest to both radiologists and clinicians.