RT Book, Section A1 Zapadka, Michael E. A1 Bradbury, Michelle S. A1 Williams, Daniel W. A2 Chen, Michael Y.M. A2 Pope, Thomas L. A2 Ott, David J. SR Print(0) ID 6671518 T1 Chapter 12. Brain and Its Coverings T2 Basic Radiology, 2e YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-162708-5 LK accessmedicine.mhmedical.com/content.aspx?aid=6671518 RD 2024/04/19 AB Technological advances in radiology during the past 30 years have vastly improved our ability to diagnose neurologic diseases. Prior to the introduction of computed tomography (CT) in 1974, neuroradiologic examinations of the brain consisted primarily of plain films of the skull, cerebral arteriography, pneumoencephalography, and conventional nuclear medicine studies. Unfortunately, these techniques, for the most part, provided only indirect information about suspected intracranial processes, were insensitive in detecting subtle or early brain lesions, or were potentially harmful to the patient. Computed tomography revolutionized the radiologic workup of central nervous system (CNS) abnormalities because for the first time normal and abnormal structures could be directly visualized with minimal risk to the patient.