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Hyberbaric Cisternography: Experience in Humans

Veterans Administration Hospital, San Diego, California
University of California, San Diego, School of Medicine, La Jolla, California

Correspondence: For reprints contact: Naomi P. Alazraki, Nuclear Medicine Service, VA Hospital San Diego, 3350 La Jolla Village Dr., San Diego, Calif. 92161.

ABSTRACT

The results of hyperbaric cisternography in 30 patients are presented. An impressive decrease in the failure rate of cisternography was noted with the hyperbaric technique. Hyperbaric cisternography facilitates removal of the radionuclide from the lumbar puncture site and increases the rate of flow cephalad. This permits earlier examination times as well as increased counting efficiency. No alterations in tracer flow in the intracranial CSF pathways were observed when compared with conventional cisternography. It appears that hyperbaric cisternography is safe and offers many advantages over conventional cisternography, including decreased failure rate, shortening of the early part of the study, higher counting efficiency, and probably decreased radiation exposure to the lumbar nerve roots and the lower spinal cord.