History and physics of CT imaging / Alexander C. Mamourian -- Radiation safety and risks / Alexander C. Mamourian and Josef P. Debbins -- CT cardiac imaging / Supratik Moulik and Harold Litt -- Cardiac CT artifacts and pitfalls / Supratik Moulik and Harold Litt -- Neuro CT artifacts / Alex C. Mamourian -- Neuro CT pitfalls / Alex C. Mamourian -- Body CT artifacts / Nicholas Papanicolaou -- Body CT pitfalls / Nicholas Papanicolaou -- Test questions / Alexander C. Mamourian.