Journal
INVESTIGATIVE RADIOLOGY
Volume 36, Issue 3, Pages 146-154Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00004424-200103000-00003
Keywords
cerebrospinal fluid MR studies; cerebrospinal fluid flow dynamics; brain hydrocephalus
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RATIONALE AND OBJECTIVES. TO analyze changes in cerebrospinal fluid (CSF) hydrodynamics in chronic adult hydrocephalus, METHODS. Phase-contrast cine-MR acquisitions were used to explore the ventricular system and the upper ventral cervical spaces of 16 patients. The aqueductal jet was explored in 32 control subjects. RESULTS. The duration of pulsatile caudal CSF flow (ie, CSF systole) was abnormally short in patients with active idiopathic and obstructive hydrocephalus. The duration of CSF cervical systole was normal in patients with stable hydrocephalus. The aqueductal stroke volume could be increased in stable communicating hydrocephalus. Patients who responded to shunting had shortened CSF systoles and hyperpulsatile ventricular patterns. Successful CSF diversion resulted in longer CSF systoles and CSF ventricular patterns that were no longer hyperpulsatile. CONCLUSIONS. Magnetic resonance analysis of CSF Row can show craniospinal dissociation and limitation of CSF outflow from the ventricles in both obstructive and communicating hydrocephalus; it should help determine the response to shunting in communicating hydrocephalus.
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