air cisternography

air cisternography
visualization of the cisterns of the brain following administration of approximately 5 mL of air by lumbar puncture; used in the evaluation of masses in the cerebellopontine angle and for detecting small acoustic tumors in the internal acoustic meatus.

Medical dictionary. 2011.

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  • pneumoencephalography — Radiographic visualization of cerebral ventricles and subarachnoid spaces by use of gas such as air; no longer used because of CT and MRI. [G. pneuma, air, + enkephalos, brain, + grapho, to write] * * * pneu·mo·en·ceph·a·log·ra·phy in .sef ə läg… …   Medical dictionary

  • Pneumoencephalography — (sometimes abbreviated PEG) is a medical procedure in which cerebrospinal fluid is drained to a small amount from around the brain and replaced with air, oxygen, or helium to allow the structure of the brain to show up more clearly on an X ray… …   Wikipedia

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