Diagnostic Imaging Overview: X-ray, CT, Ultrasound, MRI and PET

An overview of imaging from Roentgen's first radiograph through to modern cross-sectional work: how imaging equipment uses electromagnetic radiation, the modalities built on X-rays including plain radiography, contrast radiography, fluoroscopy, computed tomography and mammography, X-ray production and its interaction with tissue, inherent contrast and how each tissue density appears on film, contrast agents and barium swallow and enema studies, the development of CT and CT angiography, ultrasound as reflected mechanical waves and the skill its images demand, magnetic resonance imaging from the hydrogen nucleus to MR angiography, spectroscopy and functional MRI, and positron emission tomography.