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PREFACEThe days have gone for ever when hospital nurses and others trained themselves as X-ray assistants by process of trial and error. With the increasing use of various types of radiation, which present much greater hazards to the operating personnel, and the increasing demands for greater technical experience in radiological procedures, it has become necessary to hold courses for the training of radiographers.It was with such courses in mind that, when approached to write a text-book on Medical X-ray Technique, I gladly accepted.It was decided to base the book on not too low a level and to assume a certain knowledge of mathematics and physics, so that the treatment of basic elementary ideas could be omitted.In view of the number of well written and copiously illustrated books on radiographic positioning and centering, these subjects were intentionally passed over. The few radiographs which are included in this book serve only as examples of the techniques indicated in the text; there is and can be no question of a complete range of representative radiographs.Though it does not directly come under the title of this work, I considered it imperative to include a chapter on radioactive isotopes, in view of the close relationship which exists between this subject and the radiological problems treated in the therapy section.Certain points have been treated with extra thoroughness in order to ensure that the radiographer is in full possession of the knowledge necessary to carry out all types of procedures, which call for highly specialized experience. Such detailed information appears throughout the book in small print. In some instances the large print deals with the same subject matter as the smaller print; in the latter the treatment is either more thorough or more elaborate.In some places, where matters of importance are concerned, I have not hesitated to resort to repetition. For the sake of greater clarity, diagrams rather than photographs have been chosen as illustrations. Many of the diagrams have been taken in whole or in part from existing works by Eggert, Schinz, Raver, Lamarque, Kepp, Barth, Wachsmann and Lenihan, to whom due acknowledgement is made.For certain sections, physicists and X-ray engineers have been called upon to give their assistance in those parts where the medical man is no longer on his own ground.May this work fulfil the aim of providing a textbook for all radiographers and all those who are interested in medical radiology.
June 1959 THE AUTHOR
PREFACE TO THE SECOND EDITIONMedical radiology is an ever-expanding field of science and since the publication of the first edition, further developments and techniques have enabled me to add to the contents of this book. In the interest of greater clarity some things have been omitted, which in the light of new knowledge, might hav...
