Safety of the adjustable pressure ventricular valve in magnetic resonance imaging: problems and solutions.
We performed magnetic resonance imaging in 30 patients with hydrocephalus with Sophy adjustable pressure valves (PAVS). A pressure check following the MRI study showed a significant proportion with pressure valve changes, which could easily be readjusted by percutaneous manipulation. The value of the PAVS and its safety during MRI examinations are discussed.
Fransen
P
P
Neurosurgery Service, Clinique Universitaire St. Luc, Bruxelles, Belgium.
Dooms
G
G
Thauvoy
C
C
D004574:Electromagnetic Fields / Q000009:adverse effects; D004869:Equipment Safety; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis / Q000601:surgery*; D007427:Intracranial Pressure / Q000502:physiology*; D008279:Magnetic Resonance Imaging; D011183:Postoperative Complications / Q000175:diagnosis*; D017287:Ventriculoperitoneal Shunt / Q000295:instrumentation*