[Third ventriculostomy for obstructive hydrocephalus: findings in radioisotope cisternography].
OBJECTIVE
To study the findings in radionuclide cisternography in patients with obstructive hydrocephalus following third ventriculostomy.


METHODS
Lumbar radionuclide cisternography was performed in 15 patients with obstructive hydro- cephalus before and after third ventriculostomy.


RESULTS
The postoperative cisternography identified radiopharmaceutical reflux into the lateral cerebral ventricles with delayed clearance for 24 h, similar to the findings by cisternography of communicating hydrocephalus.


CONCLUSIONS
The cause of ventricular radiopharmaceutical reflux is not yet understood, possibly in association with the reversal of normal cerebrospinal fluid flow though the fenestration on the third ventrical floor.
Li
Wei-guang
WG
Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. reallee@21cn.com
Qi
Song-tao
ST
Peng
Yu-ping
YP
Li
Gui-ping
GP
Huang
Kai
K
Deng
Zhi-fang
ZF
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging*; D007223:Infant; D008297:Male; D008875:Middle Aged; D011868:Radioisotopes; D011877:Radionuclide Imaging; D020542:Third Ventricle / Q000000981:diagnostic imaging / Q000601:surgery*; D014696:Ventriculostomy / Q000379:methods*; D055815:Young Adult
D011868:Radioisotopes