Application of cine phase contrast MRI to diagnosis of shunt catheter obstruction in patients with hydrocephalus after ventriculoperitoneal shunt
ZHANG Hong-ri
PENG Jing-hua
LI Xiao-pan
Abstract：Objective To provide a method for diagnosing the obstruction of ventriculoperitoneal shunt (VPS) device in the patient with hydrocephalus.Methods The flow of normal saline was qualitatively observed and quantitatively analyzed respectively by cine phase contrast (PC) MRI and CSF-Q Flow software when it passed through the silicon catheter at speeds of 0 ml/h,2.17 ml/h,10 ml/h and 20 ml/h.The flow of CSF in the shunt catheters were determined and analyzed by cine PC MRI and CSF-Q Flow software in 8 patients with hydrocephalus,in whom the shunt catheters were suspected to be obstructed after the VPS.Results The velocity of fluid flow in the catheter was significantly higher in the 2.17 ml/h,10 ml/h and 20 ml/h groups than that in 0 ml/h group (P＜0.01).Of 8 patients with hydrocephalus examined by cine PC MRI and analyzed by CSF-Q Flow software,6 had the shunt catheter obstruction and 2 not.The coincident rate of diagnosis made by cine PC MRI with that proved by the operation and treatment outcomes was 100％.Conclusion Cine PC MRI is a simple,noninvasive and reliable method to diagnose shunt catheter obstruction after VPS in the patients with hydrocephalus.
Keywords：HydrocephalusCine PC MRIVentriculoperitoneal shuntFlow velocity
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 467-469 )