Radiology has always been an important aspect in diagnosing the causes responsible for various ailments. With the evolution of time the radiology has also evolved from conventional to digital and from 2 dimensions to 3 dimensions. Since Digital radiology employs various concepts and definitions it becomes primarily utmost important to know about them and apply them for the desired better images and as well as reducing the exposure to the patient. This book covers all the above mentioned criterias as tries to simplify the terminologies which are extremely important to understand for the better diagnosing experience and understanding.