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Pneumoencephalography (sometimes abbreviated PEG; also referred to as an "air study") was a common medical procedure in which most of the cerebrospinal fluid (CSF) was drained from around the brain by means of a lumbar puncture and replaced with air, oxygen, or helium to allow the structure of the brain to show up more clearly on an X-ray image ...
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Radiocontrast agents are substances used to enhance the visibility of internal structures in X-ray -based imaging techniques such as computed tomography ( contrast CT ), projectional radiography, and fluoroscopy. Radiocontrast agents are typically iodine, or more rarely barium sulfate.
Pneumoencephalography, technique of diagnostic radiology that produces X-ray films of the head after injection of air or gas between the membranes lining the brain and spinal cord to sharpen the outlines of various brain structures. The air or gas is introduced, in small increments, by exchange.
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May 18, 2022 · Citation, DOI, disclosures and article data. Pneumoencephalography is an obsolete imaging technique that allowed evaluation of the contours of the brain and ventricles by the deliberate introduction of air into the subarachnoid space.
Pneumoencephalography (abbreviated as PEG; sometimes called an ‘air study’) is an old invasive technique that involved the draining of the majority of the cerebrospinal fluid (CSF) from around the brain through a lumbar puncture.
Jun 22, 2017 · Definition. A pneumoencephalogram was once a common medical imaging procedure, introduced in 1919 by an American neurosurgeon Walter Dandy. The procedure involved a lumbar puncture, with the removal of a small volume of cerebrospinal fluid and injection of air, oxygen, or helium in its place.
