This book deals with radio diagnosis with the help of equipment like computed tomography, magnetic resonance imaging, ultrasound, scintigraphy, etc. It has been divided into three modules. The first module deals with mammography, computed tomography, image reconstruction techniques and special imaging techniques. The second module discusses about magnetic resonance imaging, contrast studies, spatial encoding, k-space and SNR and spatial resolution. The third module sheds light on ultrasound, scintigraphy and operating radiologic equipment. All the chapters start with introduction and then learning objectives and then switch over to an extensive discussion on the subject. The chapters offer Check Your Progress and end with Summary, Keywords, Exercise, Answers to Check Your Progress and Further Readings. It is an invaluable book for the students of radio diagnosis.