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An Anatomical Study

HARRY A. KAPLAN, M.D.

AMA Arch Neurol. 1959;1(2):148-152.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In a long-term study of the blood vessels of the brain,^1-3 contrast media were used as injection masses to demonstrate on roentgen film the course and cerebral relationship of these vessels. One of these media was a water solution of lead (lead sulfamate^*), which, when injected into either the internal cerebral veins or the arteries coursing over the cerebral cortex, filled a myriad of fine venous channels traversing the white matter of the cerebral hemisphere. Interconnections between the superficial and the deep venous system of the cerebral hemispheres, through blood vessels traversing the white matter, have been postulated by others. Ekker,⁴ in 1853, and Duret,⁵ in 1874, presumed the presence of venous channels connecting the superficial and deep veins of the brain. Pfeifer,⁶ in 1930, using microscopic methods, showed clearly anastomotic blood channels in the white matter of the brain. Schlesinger,⁷ in 1939, producing venous . . . [Full Text PDF of this Article]

Author Affiliations
Brooklyn

From the State University of New York College of Medicine at New York City, Downstate Medical Center, and the Neurosurgical Service of Kings County Hospital.

National Lead Company.

Footnotes
Accepted for publication March 12, 1959.

The lead sulfamate solution consists of 174 gm. of litharge (fused lead protoxide) suspended in 150 cc. of distilled water. To this is added 75 gm. of sulfamic acid while stirring. This mixture is filtered through No. 5 filter paper and a clear filtrate obtained. The filtrate is placed in a refrigerator until it becomes cloudy (for approximately 30 minutes to 1 hour) and then allowed to stand at room temperature until two clear layers appear. The upper layer is removed, and the lower layer, containing a heavy concentration of lead, is used for injection purposes.

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