Aqueductal Stenosis

Contrast ventriculography in aqueductal stenosis. Posterior part of the third ventricle with the suprapineal recess and the proximal aqueduct, the lumen of which is partially obstructed for the contrast media. In CT an aqueductal stenosis is diagnosed by a dilatation of the supratentorial ventricles (lateral and third ventricles), and in MRI direct visualization of the aqueduct is possible as well as the evaluation of the flow-pattern through the aqueduct. For the suprapineal recess and the partially obstructed aqueduct !£hydr_7_p£!.