throughout the text. Drawing on current knowledge and his own extensive experience, Dr. Selman provides a thorough revision and overview of each previously included chapter. Definitions, foundations, and principles are presented along with changes in methods and procedures. The text presents five new chapters on computed tomography, radioactivity and diagnostic nuclear medicine, radiobiology, protection in radiology/health physics, and nonradiologic imaging. In addition, basic computer science, mammography, digital imaging, and the basic science of radiobiology are thoroughly discussed. This text continues to reflect the actual needs of students with more questions, problems, and sample solutions which are included at the end of every chapter. The index is user friendly to facilitate the search for answers. Concepts have! been refined, with old figures revised and new figures added where applicable. To improve readability, a double-column format has been adapted, bringing the illustrations closer to their explanation within the text. Each chapter begins with an outline of the contents guiding the student through the essential elements. This text continues to fulfill the existing need within the field for an up-to-date, precise, and comprehensive book detailing the development of skills necessary for professional work.

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