title: Brain ventricular wall movement assessed by a gated cine MR trueFISP sequence in patients treated with endoscopic third ventriculostomy.
abstract: The purpose of this study was to investigate the value of brain ventricular wall movement assessment with a gated cine trueFISP MR sequence for the diagnosis of endoscopic third ventriculostomy (ETV) patency. Sixteen healthy volunteers and ten consecutive patients with noncommunicating hydrocephalus were explored with a MR scanner (Siemens, Avanto 1.5 T) before, 1 week and 3 months after ETV. TrueFISP was evaluated qualitatively (ventricular wall movement and CSF flow through ETV) and quantitatively [distance moved (DMLT) during a cardiac cycle by the lamina terminalis]. The third ventricle volume (TVV) was assessed. Statistical analysis was performed using nonparametric tests. There was no motion of the lamina terminalis (LT) detected on preoperative data. A pulsatile motion of the LT was found for patients with a patent ETV and for controls. DMLT and TVV were correlated (r = 0.79, P = 0.006). A transient dysfunction of ETV was successfully diagnosed on the trueFISP sequence with no motion of the LT or CSF flow observed. The trueFISP sequence appears reliable for the diagnosis of ETV patency and provides non-invasive assessment of the movement of the ventricular wall related to CSF pressure changes.
authors: Unité Analyse et Restauration du mouvement, UMR-CNRS, Paris, France. jerome.hodel@hmn.aphp.fr
authors: Jérôme
authors: J
authors: Hodel
authors: Philippe
authors: P
authors: Decq
authors: Alain
authors: A
authors: Rahmouni
authors: Sylvie
authors: S
authors: Bastuji-Garin
authors: Anne
authors: A
authors: Maraval
authors: Catherine
authors: C
authors: Combes
authors: Béchir
authors: B
authors: Jarraya
authors: Caroline
authors: C
authors: Le Guérinel
authors: André
authors: A
authors: Gaston
mesh_terms: D000328:Adult; D055424:Cardiac-Gated Imaging Techniques / Q000379:methods*; D002552:Cerebral Ventricles / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D019028:Magnetic Resonance Imaging, Cine / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome; D014696:Ventriculostomy / Q000379:methods; D055815:Young Adult