title: [MRI with cerebrospinal fluid measurement before and after endoscopic ventriculostomy and aqueductal stenosis].
abstract: OBJECTIVE
  Evaluation of MR imaging and CSF flow measurement for planning and follow-up of neuroendoscopic third ventriculostomy in occlusive triventricular hydrocephalus.
  
  
  METHODS
  17 patients with occlusive hydrocephalus due to idiopathic or neoplastic aqueductal stenosis were examined before and after surgery with cardiac-gated T2-weighted and cardiac-gated phase contrast cine sequences. The visibility of anatomic structures and the patency of the ventriculostomy were evaluated.
  
  
  RESULTS
  In all 17 patients, the relevant anatomic structures were visible. The cine sequence demonstrated occlusion of the aqueduct and patency of the ventriculostomy in all cases, even in patients with doubtful clinical patterns.
  
  
  CONCLUSIONS
  MR imaging with additional cardiac-gated cine sequences allows exact preoperative diagnosis of occlusive hydrocephalus as well as patient selection and planning for endoscopic third ventriculostomy. Non-invasive follow-up, especially in patients with a doubtful clinical pattern, is possible.
authors.affiliation: Institut und Poliklinik für Radiologische Diagnostik, Universität Köln. Ernst@med.uni-duesseldorf.de
authors.forename: S
authors.initials: S
authors.lastname: Ernst
authors.forename: R I
authors.initials: RI
authors.lastname: Ernestus
authors.forename: H
authors.initials: H
authors.lastname: Kugel
authors.forename: K
authors.initials: K
authors.lastname: Lackner
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002535:Cerebral Aqueduct / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D002555:Cerebrospinal Fluid / Q000502:physiology*; D002648:Child; D004724:Endoscopy; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010347:Patient Care Planning; D020542:Third Ventricle / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D014696:Ventriculostomy