单词	pneumoencephalography
释义	pneumoencephalography /ˌnjuːməʊɛnsɛfəˈlɒɡrəfi / /ˌnjuːməʊɛnkɛfəˈlɒɡrəfi/ noun [mass noun] Medicine A radiographic technique (now largely superseded) for examining the brain. It involved displacing the cerebrospinal fluid in the ventricles of the brain by air or oxygen, which served as a contrast medium.Pneumoencephalography has proved so useful in the investigation of disease of central nervous system that it is now widely practised.... Pneumoencephalography was performed extensively throughout the late 20th century, but it was extremely painful and, as researchers would later discover, very dangerous Derivatives pneumoencephalographic adjective ... In the case of pneumoencephalographic examination, X-ray exposures are made with the patient in six basic positions
随便看	restraining order restrainment restraint restraintive restraint of trade restraint order re-stream restrengthen restrict restrictable restricted restricted licence restrictedly restrictedness restricted stock restrictee restriction restrictionary restriction endonuclease restriction enzyme restriction fragment restriction fragment length polymorphism restrictionism restrictionist restriction map

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