Resonance of the Thorax, this Second Edition integrates current MRI concepts into all areas of chest imaging and compares the clinical utility of Ct and MRi, particularly in the investigation of cardiovascular disease and thoracic neoplasia. The principles of thoracic MRI are explained in the paper also describes CT techniques using today's faster scanners and improved reconstruction algorithms. This paper details the role of CT and MRI in evaluating lung cancer and the use of current technologies, including MRI and ultrafast CT scanning, in pediatric patients. The expanded chapter on diffuse lung disease highlights the applications of high-resolution CT in the diagnosis of parenchymal pathology.