Publication of this book has been stimulated by 15 performed and duodenal abnormalities thus not years experience with contrast fluid irrigation visualised, occurred frequently. techniques of the small intestine and in particular All too frequently failure to maintain the proper by examinations performed and evaluated by col­ infusion rate, by many erroneously totally under­ legues. evaluated, had the result that disturbances in The classification of the X-ray pathology has motility were missed. been arranged to give a more effective application Additional and often too early administration in practice than is usually found in current of water, a measure that is seldom indicated and handbooks. Normally this classification is adapt­ tends to produce more bad results than good, is ed to that of formal anatomic pathology and quite frequently performed as a sort of panic internal medicine. In this book the classification reaction. The few indications for this procedure is based on the radiological symptomatology. ought to be known and strictly followed, super­ Thus, often completely unassociated conditions fluous application costs more time and causes are found listed as a possible cause for each unnecessary discomfort for the patient.