Giovanni Di Chiro
A review of contemporary techniques and applications
Giovanni Di Chiro and Louis Wener
✓ The authors present a current review of the development, techniques, and applications of angiographic studies of the spinal cord, with special emphasis on selective arteriography.
Report of a Case
John Doppman and Giovanni di Chiro
Giovanni Di Chiro and Arthur S. Grove Jr.
Louis Wener, Giovanni Di Chiro and Robert A. Mendelsohn
✓ An external carotid-cavernous fistula diagnosed by serial common carotid arteriography is reported. The diagnosis was reached on the basis of the difference in time between filling of the distal internal and external carotid arteries and the visualization of the fistula.
Giovanni Di Chiro, Robert L. Fisher and Karin B. Nelson
Part 1: Cisternographic findings
Thomas H. Milhorat, Mary K. Hammock and Giovanni Di Chiro
✓ In congenital obstructive (internal) hydrocephalus, a coexisting obstruction of the subarachnoid space is frequently present. In the current study, cisternographic evidence is provided that considerable re-expansion of the subarachnoid space may occur after temporary ventricular drainage. These findings suggest that in at least some cases of obstructive hydrocephalus, the subarachnoid space is potentially open but mechanically compressed. The therapeutic significance of re-expanding the subarachnoid space by temporary ventricular shunts is discussed.
John L. Doppman, Giovanni Di Chiro and Ayub K. Ommaya
✓ A technique is described for embolically occluding the feeding arteries of spinal cord arteriovenous malformations by non-operative means. Following the identification of each feeder by selective arteriography, a system of coaxial catheters is introduced percutaneously and each feeding artery is occluded within the spinal canal using metallic pellets, gelfoam, and muscle fragments. Technical details of the procedure are described and the choice of embolic material discussed. Embolization has been successfully accomplished in five patients. None were made worse, and three have shown progressive neurological improvement. The simplicity of the procedure and the absence of morbidity are stressed. Percutaneous embolization should be considered as an alternative to operative ligation of feeding arteries.