title: MR cisternography after intrathecal Gd-DTPA application.
abstract: The purpose of this study was to establish and to evaluate MR cisternography after intrathecal Gd-DTPA administration to detect rhinobasal cerebrospinal fluid (CSF) fistulae in patients with suspected CSF rhinorrhoea. Ten patients with suspected CSF rhinorrhoea were examined. The MR cisternography included the following investigation steps: acquisition of nonenhanced fat-suppressed T1-weighted spin-echo (SE) scans of the skull base and the paranasal sinuses, lumbar puncture with administration of 1 ml Gd-DTPA solute with 4 ml NaCl and performance of MR cisternography with the same fat-suppressed T1-weighted sequences as used initially. In 10 patients with suspected CSF rhinorrhoea Gd-DTPA enhanced MR cisternography detected 5 CSF fistulae. In 3 of 5 CSF leaks were located in the cribriform plate and in 2 of 5 sphenoidal. Whereas 4 of these depicted leaks were confirmed surgically, in 1 case the CSF fistula closed spontaneously. In another case, CSF leakage after severe head injury was clinically highly suspected but ceased prior to MR cisternography with inability to detect the temporary fistula. In the remaining 4 patients with serous rhinorrhoea MR cisternography did not provide any evidences for CSF fistulae. Intrathecal Gd-DTPA injection was tolerated excellently. Clinical and EEG examinations showed no gross behavioural or neurological disturbances and no seizure activity, respectively. The MR cisternography after intrathecal administration of Gd-DTPA represents a safe, promising and minimally invasive method for detection of CSF fistulae. This MR investigation provides excellent depiction of CSF spaces and pinpoints CSF fistulae.
authors.affiliation: Department for Neuradiology, Radiologic Clinic, Centre for Skull Base Surgery, Saarland University Clinic, Homburg/Saar, Germany. reiche.k@t-online.de
authors.forename: Werner
authors.initials: W
authors.lastname: Reiche
authors.forename: Yvonne
authors.initials: Y
authors.lastname: Komenda
authors.forename: Bernhard
authors.initials: B
authors.lastname: Schick
authors.forename: Iris
authors.initials: I
authors.lastname: Grunwald
authors.forename: Wolf-Ingo
authors.initials: WI
authors.lastname: Steudel
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Reith
mesh_terms: D000328:Adult; D001930:Brain Injuries / Q000175:diagnosis / Q000473:pathology; D002559:Cerebrospinal Fluid Rhinorrhea / Q000175:diagnosis / Q000473:pathology; D003287:Contrast Media / Q000008:administration & dosage*; D006259:Craniocerebral Trauma / Q000175:diagnosis / Q000473:pathology; D004724:Endoscopy; D005004:Ethmoid Bone / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D005402:Fistula / Q000175:diagnosis / Q000473:pathology; D005500:Follow-Up Studies; D019786:Gadolinium DTPA / Q000008:administration & dosage*; D006801:Humans; D007278:Injections, Spinal; D015601:Injury Severity Score; D008297:Male; D008875:Middle Aged; D011011:Pneumoencephalography; D013129:Spinal Puncture
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA